Cardiologist Warns: This Sleeping Position Increases STROKE Risk Overnight!

0:00You went to bed last night completely

0:01fine. No chest pain, no dizziness, no

0:04warning signs. You just pulled back the

0:06covers, settled into your usual spot,

0:09and closed your eyes. But, here's what I

0:11need you to understand. And this is the

0:13part that most people never find out

0:15until it's too late.

0:17The way your body was positioned during

0:19those hours of sleep may have been doing

0:22something to your brain and your

0:23circulatory system that neither of you

0:26were even remotely aware of. I've spent

0:28over two decades working with older

0:30adults in cardiovascular medicine. And

0:33one thing that keeps showing up in my

0:35patient data over and over again is a

0:38link between specific nighttime body

0:40positions and what I call silent

0:43vascular events.

0:45These are not dramatic. There's no

0:47obvious warning. They happen quietly

0:49while you're unconscious, and they chip

0:51away at your brain health and your heart

0:54function one night at a time. The most

0:56frightening part? There is one position

0:58in particular, one that a significant

1:01percentage of adults over 60 sleep in

1:04regularly, that measurably increases

1:06your stroke risk. Not in theory, in

1:09documented clinical data. And I'll show

1:11you exactly what it is in just a few

1:13minutes. Stay with me for the next few

1:15minutes because here's what I'm going to

1:17walk you through. Five specific

1:19nighttime habits and body positions

1:22ranked from concerning to genuinely

1:24dangerous, and the precise physiological

1:27reason each one increases stroke and

1:29cardiovascular risk for adults over 55.

1:33Then, I'm going to give you two

1:35evidence-backed positions that are not

1:37only safe, they are actively protective.

1:40One of them does something remarkable to

1:42your brain while you sleep that the

1:44mainstream medical world is only just

1:46beginning to take seriously. But, before

1:49we get into the list, I need to ask you

1:51something. Drop a comment right now.

1:54Just two words. Telling me whether you

1:57sleep on your back, your side, your

1:59stomach, or whether you switch around.

2:02Because within the next few minutes, I'm

2:04going to tell you whether your answer

2:06puts you in a risk category you need to

2:08know about.

2:09I'm Dr. Ari Smith. I focus on preventive

2:12cardiovascular health and longevity

2:14medicine for adults over 50. And what

2:17I'm sharing today isn't vague wellness

2:19advice. It's the kind of specific,

2:22actionable information that should have

2:24been part of every doctor's visit the

2:26past 10 years,

2:28but almost never is. Let's start the

2:30list. Number five, sleeping with one or

2:34both arms raised above your head. If you

2:36wake up with your arms stretched

2:38overhead, or you regularly fall asleep

2:41in that position, this one is for you.

2:43It looks harmless. Some people do it out

2:46of habit. Others find it comfortable,

2:48but what it's doing to your circulation

2:50over several hours is something that

2:53cardiologists and sleep researchers are

2:55paying increasingly close attention to.

2:58Here's the anatomy. When your arms

3:00remain elevated above the level of your

3:02heart for an extended period during

3:05sleep, arterial blood pressure within

3:07those limb vessels drops.

3:09That's fairly minor on its own.

3:12The more significant issue is what

3:14happens in the thoracic outlet, the

3:16narrow passage just beneath your

3:18collarbone and first rib, where major

3:20nerves, arteries, and veins pass between

3:23your neck and your arm.

3:26In many adults, especially those over

3:2860, who have developed any degree of

3:30postural rounding in the upper spine,

3:33this outlet becomes slightly narrowed.

3:36When you add hours of arm elevation to

3:38that structural compression, you are

3:40essentially squeezing blood flow in and

3:43out of the vessels that supply your

3:45arms, your shoulder muscles, and the

3:47surrounding cervical structures. What

3:50does that cause? Intermittent reduction

3:52in venous return from those limbs. Your

3:55heart has to work slightly harder to

3:57compensate. Here's the pattern I see in

3:59practice.

4:00A patient comes in complaining that both

4:03hands feel numb or tingly when they wake

4:05up. They shake it off every morning,

4:08chalk it up to age, and move on. But

4:10when I ask how they sleep, arms above

4:13the head almost every time. What's

4:16happening is called positional thoracic

4:18outlet compression, and it's not just

4:20uncomfortable. In the context of someone

4:22already managing borderline blood

4:24pressure or reduced cardiac output, that

4:27nightly positional restriction adds

4:29hours of low-grade vascular strain that

4:32never registers during a daytime office

4:34visit. The fix is simpler than you'd

4:37think, and I'll explain it after we go

4:39through the full list. But right now,

4:41you need to hear number four because

4:43this one surprises people. Number four,

4:46sleeping on your stomach.

4:49This is probably the most common sleep

4:51position that physicians quietly object

4:53to and rarely bring up with their

4:55patients.

4:56Sleeping face down or prone creates a

4:59cascade of physiological problems that

5:02compound one another.

5:03Let's go through them. First, your neck.

5:07To breathe when you're face down, your

5:09head must rotate to one side, fully.

5:12You're not tilting slightly, your entire

5:14cervical spine is rotated at close to

5:17its maximum range for hours at a time.

5:20The vertebral arteries, which run

5:22through the bony channels of your

5:23cervical vertebrae and supply blood

5:26directly to your brain stem, get torqued

5:28in that position. Multiple studies using

5:31transcranial Doppler sonography,

5:33published in the Journal of Manipulative

5:35and Physiological Therapeutics and

5:37Manual Therapy, demonstrated that

5:40sustained end-range cervical rotation

5:43measurably reduces blood flow velocity

5:45through the vertebral arteries a an

5:48effect of particular concern in older

5:50adults with any underlying vascular

5:52pathology. Now, hold that thought

5:55because there's a second mechanism

5:56happening simultaneously.

5:59When you lie face down, your entire body

6:01weight presses against your chest and

6:03abdomen.

6:05Every breath you take is resisted by

6:07that gravitational compression. Your

6:09lungs don't fully expand. Your diaphragm

6:12can't descend the way it's designed to.

6:14The result is reduced tidal volume,

6:17shallower breathing across every cycle

6:20for 6, 7, 8 consecutive hours.

6:23Lower oxygen intake, constricted

6:26vertebral blood flow, extended cervical

6:29rotation. For a 35-year-old, the body

6:32absorbs this. For someone over 60 with

6:35any degree of arterial stiffness or

6:37cervical disc degeneration, this is a

6:40meaningful nightly insult to your

6:42vascular system. I had a patient, a

6:45retired school principal, 67 years old,

6:48who had been stomach sleeping her entire

6:50life.

6:52She came to me for chronic morning

6:53headaches, stiff neck, and a strange

6:56floaty sensation she described as like

6:59the room isn't quite real when she first

7:01stood up each day.

7:03She'd seen three other doctors. Nobody

7:05asked how she slept.

7:07Within 2 weeks of transitioning away

7:09from prone sleeping, the floaty

7:11sensation disappeared. The headaches

7:14halved in frequency. That's how

7:16significant positional correction can

7:19be. Number three is where we get into

7:21something that doesn't get talked about

7:23nearly enough. If you're finding this

7:25helpful so far, type four in the

7:27comments right now. It takes just 2

7:29seconds, and it lets me know you're

7:31still with me because the next three

7:33habits are even more important, and you

7:35definitely won't want to miss what's

7:37coming. Number three,

7:40sleeping dehydrated without realizing

7:42it. This one isn't technically a

7:45position, but it belongs on this list

7:48because it interacts with every position

7:50on it, and it dramatically amplifies

7:52stroke risk overnight. Here's what most

7:55people don't know.

7:56You lose a significant amount of fluid

7:58through respiration and minor

8:00perspiration during a normal night of

8:03sleep, without drinking a single thing.

8:06Estimates from sleep physiology research

8:09suggest adults can lose anywhere from

8:11half a liter to a full liter of water

8:13overnight simply through breathing and

8:16skin evaporation.

8:18Now, here's why that matters for your

8:19cardiovascular system.

8:21Blood is largely water. When you're even

8:24mildly dehydrated, your blood becomes

8:27thicker and more viscous. It doesn't

8:29flow as easily through the narrow

8:32vessels feeding your brain. The small

8:34cerebral arterioles, already reduced in

8:37diameter and elasticity in older adults,

8:40have to work against increased

8:42resistance. Your heart has to generate

8:45more pressure to push that thicker blood

8:47through.

8:48And here is the connection that most

8:50people completely miss. In older adults,

8:53blood pressure naturally drops during

8:56the first few hours of sleep. That's a

8:58healthy protective mechanism. But if

9:01your blood is simultaneously more

9:02viscous because you went to bed mildly

9:05dehydrated, that combination of dropping

9:08pressure and thicker blood creates

9:10conditions where clot formation and

9:13reduced cerebral perfusion can occur in

9:15the same window.

9:17Strokes that happen in the early morning

9:18hours between 6:00 a.m. and noon, a

9:21well-documented peak in clinical data,

9:24are frequently associated with this

9:26overnight viscosity increase.

9:28The counterintuitive problem is that

9:31many older adults intentionally limit

9:33fluids in the evening to avoid nighttime

9:36bathroom trips.

9:37I understand why.

9:39But going to bed in a state of mild

9:41dehydration to avoid one inconvenience

9:44may be significantly increasing your

9:46stroke risk. There's a strategy for

9:48managing this that doesn't require you

9:50to be up every hour, and I'll walk

9:52through it in the solution section.

9:54Before we get to numbers two and one,

9:57the two that I consider most urgent, I

9:59need to say something directly.

10:01If this information is new to you, if

10:04you've never had a physician sit down

10:06and explain how your sleeping position

10:08affects your cardiovascular system

10:11overnight, that's not your fault. This

10:14is not the kind of information that fits

10:16into a 15-minute appointment, but it is

10:18exactly the kind of information that, if

10:21you act on it, can meaningfully change

10:23your health trajectory over the next

10:25decade.

10:27Hit the like button right now if you've

10:28learned something in the first half of

10:30this video. And if you haven't

10:32subscribed yet, do it before we get to

10:34number one, because the solution I share

10:37after that list is one of the most

10:39important things I've covered on this

10:41entire channel. Let's continue. Number

10:44two, sleeping flat on your back.

10:47If you have high blood pressure or take

10:49blood pressure medication, this one has

10:52layers, so I'm going to take my time

10:53with it. Lying flat on your back sounds

10:56like the medically responsible choice.

10:58Spine aligned, even pressure

11:01distribution.

11:02This is what you picture when someone

11:04says healthy sleep position.

11:07And for many people, it is fine.

11:09But for adults over 60 who are managing

11:11hypertension or who take

11:13antihypertensive medications, flat back

11:16sleeping can create a specific vascular

11:19scenario that becomes dangerous in the

11:21early morning hours. Here's the

11:23mechanism. When your body is completely

11:26horizontal, blood redistributes toward

11:29your head. The venous drainage from your

11:31brain back down to your heart has no

11:34gravitational assist. Intracranial

11:36venous pressure increases modestly but

11:39measurably. In healthy vessels, this is

11:42not a problem. But in someone whose

11:44cerebral arteries have any degree of

11:46atherosclerotic narrowing, which by age

11:4965 applies to a very significant portion

11:52of the population, that modest pressure

11:55increase combined with reduced drainage

11:57creates a microenvironment

11:59where the risk of small vessel rupture

12:02or thrombosis quietly rises. Now, add

12:05blood pressure medication to that

12:07picture.

12:08Many common antihypertensives,

12:10particularly calcium channel blockers

12:13and ACE inhibitors, have their peak

12:16vasodilatory effect in the overnight

12:18hours, especially the longer-acting

12:21formulations. The intention is to lower

12:24your blood pressure during sleep, which

12:25is protective. But if your vessels are

12:28dilated, your body is horizontal, and

12:30blood is pooling in your cranial vault,

12:33the body's reflexive response is to

12:35spike compensatory pressure early in the

12:37morning, particularly between 6:00 and

12:409:00 a.m. This is a well-documented

12:43phenomenon called the morning surge, and

12:46it corresponds precisely with the peak

12:48window for stroke events across global

12:51epidemiological data.

12:53Research published in the journal

12:55Hypertension and confirmed across

12:57multiple ambulatory blood pressure

12:59monitoring studies tracked overnight

13:02blood pressure patterns in patients

13:04taking common antihypertensives.

13:07The findings confirmed what clinicians

13:09had long observed. The morning blood

13:11pressure surge, defined as the rise in

13:14systolic pressure from the nocturnal

13:16trough to the early morning period, is

13:19associated with increased

13:21cerebrovascular risk, particularly in

13:24elderly hypertensive cohorts. Picture

13:26this, a 71-year-old man, blood pressure

13:30has been well controlled for years. His

13:33physician is satisfied, but every

13:35morning around 5:30 a.m. he wakes up

13:37with a pounding headache at the back of

13:39his head. He's been blaming it on his

13:41pillow.

13:43What I see when I ask him about his

13:44sleep setup is a man who sleeps

13:47completely flat, takes his blood

13:49pressure medication at night, and is

13:51experiencing a daily morning pressure

13:53surge that is literally pounding against

13:56his cerebral vasculature. One wedge

13:59pillow, 11° of elevation, morning

14:02headaches gone within a week. If you're

14:05managing blood pressure and sleeping

14:06completely flat, please take that

14:09seriously. If this is helping you so

14:11far, type two in the comments. It only

14:14takes a second, and it lets me know

14:16you're still here.

14:18Number one, sleeping on your back

14:20consistently with uncontrolled snoring

14:22or undiagnosed sleep apnea. This is the

14:25combination I want you to understand

14:28because individually, some of these

14:30factors are manageable. Together, they

14:32form one of the most dangerous overnight

14:34cardiovascular scenarios I encounter in

14:37clinical practice. Let's separate the

14:39components. Back sleeping, compared to

14:42any lateral position, is where

14:44polysomnography data consistently shows

14:47the dramatic increase in apnea event

14:50frequency.

14:51Research confirms that supine sleeping

14:53reliably increases airway

14:55collapsibility. With studies showing

14:58patients can have twice as many or more

15:00obstructive events on their back

15:02compared to their side.

15:04The anatomical reason is that back

15:06sleeping allows gravitational tongue and

15:10soft tissue collapse directly toward the

15:12posterior pharynx in a way that lateral

15:15positioning does not. Here's where this

15:18becomes critical. Add obstructive

15:20snoring or undiagnosed sleep apnea to

15:23that picture.

15:24Sleep apnea causes your airway to

15:26partially or fully collapse during

15:28sleep, cutting off your breathing for

15:3010, 20, sometimes 40 seconds at a time.

15:35Your blood oxygen plummets. Your brain,

15:37recognizing a crisis, fires a massive

15:40sympathetic nervous system response.

15:42Adrenaline surges.

15:44Your heart rate spikes. Your blood

15:46pressure spikes.

15:48You partially wake. Your airway reopens.

15:51Oxygen comes back and you fall back

15:54under, usually without remembering any

15:56of it. This cycle can happen dozens,

15:59sometimes over a hundred times per

16:02night.

16:03Now, here's the intersection. Back

16:05sleeping dramatically worsens apnea

16:07event frequency compared to side

16:09sleeping in polysomnography studies.

16:12The supine position is the single

16:14greatest positional driver of airway

16:16collapse in sleep disordered breathing.

16:19So, you have increased airway

16:21instability, repeated oxygen

16:24desaturation episodes, repeated

16:26adrenaline surges, repeated blood

16:28pressure spikes every single night. The

16:31American Academy of Sleep Medicine has

16:33published data on the relationship

16:35between obstructive sleep apnea,

16:37nocturnal blood pressure dysregulation,

16:40and stroke incidence. The findings are

16:42not subtle.

16:43A 20-year follow-up study reported that

16:46people with moderate to severe

16:48obstructive sleep apnea were nearly four

16:51times more likely to have a stroke

16:53compared to those without it,

16:55independent of other risk factors

16:57including weight, blood pressure, and

16:59smoking.

17:00Here's the part that haunts me as a

17:02clinician.

17:03The vast majority of adults who snore

17:05heavily have never been formally

17:07evaluated for sleep apnea.

17:10They've been told they snore. Their

17:12partner complains. They feel tired in

17:14the morning, but they've never had a

17:16sleep study. They don't realize that

17:18those sounds coming out of their throat

17:20every night are the external signal of a

17:23physiological crisis happening

17:25repeatedly inside their cardiovascular

17:27system. If you snore, or if your partner

17:30has ever told you that you stop

17:31breathing during sleep, please make that

17:34phone call this week.

17:36A home sleep study is relatively simple

17:38and inexpensive, and what you find may

17:40be the single most important health

17:42discovery of the decade. Now, let's talk

17:45about what to do instead. Position one,

17:48left side sleeping correctly set up.

17:51Left side sleeping isn't just the better

17:53side. There is specific compelling

17:56physiology behind why it protects your

17:58brain and your heart simultaneously.

18:01Your heart sits slightly left of center.

18:04On your left side, gravity supports

18:06venous return. Blood flows from your

18:09lower body back toward the right atrium

18:11with less resistance.

18:13Your heart generates less effort per

18:15beat. Over 8 hours, that difference in

18:18cardiac workload is significant. But

18:21here's what makes left side sleeping

18:23genuinely remarkable for older adults

18:26specifically. Your body has a system

18:28called the glymphatic pathway.

18:30Essentially, your brain's dedicated

18:33overnight waste removal network.

18:35During deep sleep, cerebrospinal fluid

18:38is pumped through channels surrounding

18:40your brain's blood vessels, flushing out

18:42metabolic debris,

18:44including amyloid beta and tau proteins,

18:47the same proteins that accumulate in

18:49Alzheimer's disease.

18:502015 study published in the Journal of

18:53Neuroscience by researchers at Stony

18:56Brook University and the University of

18:58Rochester demonstrated that glymphatic

19:01transport was most efficient in the

19:03lateral teens side sleeping side

19:06position compared to sleeping on the

19:08back or stomach. The research was

19:10conducted in rodent models with emerging

19:13human evidence now building a parallel

19:15picture.

19:16What the data shows clearly is that side

19:19sleeping as a category produces

19:21measurably better brain waste clearance

19:24than either back or stomach sleeping.

19:27Every night you spend in a sub-optimal

19:29position is a night your brain's

19:31cleaning crew works at reduced capacity

19:34and the proteins they fail to remove

19:36don't disappear. They accumulate over

19:39years, over decades. Practically, use a

19:43full-length body pillow in front of you.

19:46It prevents you from rolling forward and

19:48compressing your chest. Place a pillow

19:50between your knees to keep your hips

19:52aligned and prevent lower back strain.

19:55Your bottom shoulder should be slightly

19:57forward. Don't trap it underneath your

19:59body weight. You will roll over during

20:02the night. That is completely normal and

20:05not a failure.

20:06The objective is spending the majority

20:08of your sleep hours in this position,

20:11not achieving perfection. Position two,

20:14slightly elevated back sleeping. Those

20:17who cannot side sleep. Shoulder

20:19arthritis, hip pain, or other physical

20:22limitations make side sleeping

20:24impractical. Slightly elevated back

20:26sleeping is a viable and

20:28evidence-supported alternative. The

20:30critical word is elevated, not flat. A

20:34firm foam wedge pillow that raises your

20:36entire upper torso, not just your head,

20:39to approximately 15 to 20 degrees is the

20:42target. This elevation assists venous

20:45return from your lower body, reduces

20:48intracranial venous pressure, and in

20:50many cases reduces apnea event frequency

20:53compared to flat back sleeping.

20:55Place a small pillow or rolled towel

20:57beneath your knees to preserve your

20:59lumbar curve. If you have diagnosed

21:02moderate to severe sleep apnea, back

21:05sleeping even with elevation may be

21:07insufficient. Left side positioning

21:09remains safer. But for those managing

21:12mild snoring, borderline blood pressure,

21:15and early circulatory concerns, this

21:17position offers meaningful protection

21:19without requiring a complete habit

21:22overhaul. On the issue of overnight

21:24dehydration, the goal is not to drink

21:26large amounts of water right before bed.

21:29That defeats the purpose and guarantees

21:31bathroom trips. The strategy is adequate

21:34hydration throughout the afternoon,

21:36tapering off naturally by early evening.

21:38Aim to finish your primary fluid intake

21:41by 7:00 p.m. Then, keep a small glass of

21:44water on your nightstand, around 4 to 6

21:47oz, and drink it in the morning before

21:49you stand up. This modest rehydration

21:52before your first vertical movement

21:54helps buffer the morning blood viscosity

21:57increase and reduces your morning

21:59cardiovascular surge. Some of my

22:01patients also find that slightly salting

22:03their last small meal, not heavily, just

22:07normally seasoned food, helps retain

22:10enough overnight fluid volume to prevent

22:12the worst of the sleep dehydration.

22:15Discuss that with your physician if

22:17you're managing kidney or blood pressure

22:18conditions. Even the most protective

22:21sleeping position operates within an

22:23environment that either supports or

22:25sabotages your recovery.

22:28Temperature matters more than most

22:30people realize. Your body needs its core

22:32temperature to drop to initiate the deep

22:35sleep stages where genuine

22:37cardiovascular recovery occurs.

22:40A room that stays between 64°

22:43and 67° allows that temperature drop to

22:46happen efficiently.

22:48A warm room keeps you circling through

22:50lighter sleep phases. Your heart rate

22:52stays elevated, your blood pressure

22:55doesn't drop appropriately, and you wake

22:57up feeling like you never really rested.

23:00Screen exposure after 9:00 p.m.

23:03suppresses melatonin production through

23:05blue light wavelengths, delaying the

23:07onset of deep sleep, and by extension,

23:10delaying the glymphatic flush and blood

23:12pressure dip that your brain and vessels

23:14need. And noise disruption, even sounds

23:17that never fully wake you, triggers

23:19brief sympathetic nervous system

23:21responses. Your heart rate spikes,

23:24cortisol pulses into your bloodstream,

23:26your vascular system registers that

23:28stress. A consistent sound environment,

23:31whether through a white noise machine or

23:33quality earplugs, removes those

23:36microstressors from your overnight

23:38cardiovascular picture.

23:40You can also track what your body is

23:42actually doing overnight without any

23:44complex equipment.

23:46An overnight pulse oximeter, a simple

23:48fingertip clip, monitors your blood

23:51oxygen saturation through the night. If

23:53you're regularly dropping below 92% or

23:57that is clinically significant and worth

23:59bringing to your physician. A basic

24:01journal noting your morning symptoms,

24:04whether you wake with headaches,

24:05dizziness when you first stand, tingling

24:08in your hands or feet, or mental

24:10fogginess can reveal patterns that a

24:13quarterly blood draw simply never will.

24:16Patterns that, when you bring them to

24:18your doctor with dates and specific

24:20details, lead to real diagnostic

24:22conversations instead of reassurances

24:25that everything looks normal on paper.

24:28These tools don't replace medical care.

24:30They create the data foundation that

24:32makes medical care more effective. Why

24:34your doctor hasn't told you this. I want

24:37to be honest with you about something.

24:39Sleep positioning doesn't have a billing

24:41code. There is no pharmaceutical

24:44solution, no lab value, no imaging study

24:48that captures what your body does during

24:50the 8 hours your physician never sees.

24:53A 15-minute appointment focused on

24:55prescription management and blood work

24:58simply doesn't leave room for a

24:59conversation about your pillow height or

25:02which side you sleep on. That doesn't

25:04mean this information is speculative.

25:06The research on glymphatic function,

25:08positional stroke risk, morning blood

25:10pressure surge, and sleep apnea's

25:12cardiovascular consequences is well

25:15established in the medical literature.

25:17It's just not finding its way into

25:19routine clinical practice fast enough.

25:22You're ahead of the curve by knowing it

25:24now. Pick one thing from today. Just

25:27one.

25:28Maybe it's transitioning to left side

25:30sleeping with a body pillow tonight.

25:32Maybe it's calling your doctor this week

25:35to ask about a sleep study. Maybe it's

25:37putting a small glass of water on your

25:39nightstand and stopping screen time 45

25:42minutes earlier.

25:43One change, 7 days. Pay attention to how

25:47you feel each morning. Tell me in the

25:49comments which change you're starting

25:50with.

25:51Your answer might help someone else in

25:53this audience recognize a pattern

25:55they've been dismissing for years. And

25:58if someone in your life is over 60,

26:00manages blood pressure, snores loudly,

26:03or keeps waking up with morning

26:05headaches they can't explain, share this

26:07video with them.

26:09That conversation might matter more than

26:11you realize. If you're not subscribed,

26:13do it right now. And here's why this

26:15week specifically matters.

26:18Next week I'm releasing a video on five

26:20minerals that cardiovascular research

26:22has directly linked to overnight stroke

26:25risk reduction. Not supplements pushed

26:28by wellness bloggers. Specific

26:30micronutrients with documented

26:32mechanisms. And most of them are

26:34available in ordinary food at your

26:36grocery store.

26:37But there are two critical details most

26:39people get completely wrong. The timing

26:42of when you consume them and a common

26:44combination that actually cancels out

26:47the protective effect. That video builds

26:50directly on what we covered today.

26:52Subscribe and turn on notifications so

26:54you don't miss it. Sleep well. Your

26:57brain is counting on it. I'm Dr. Eric

26:59Smith, and I'll see you in the next one.