Are you okay?

Lackluster peewoops?

Peewhoop. (Peewoop echos)

Is there anything I can do to stop drooling while I sleep?

Stop thinking about Bear.

That, in my medical world,

I've seen that the most people drool

because they think about Bear.

No, I would wanna know why you're drooling.

A lot of times people drool because they're mouth breathing

and it has something to do with a blockage in the nose,

and that could be something that's treatable

with medications due to an allergy or something like that,

or it could be anatomical.

There's polyps that can develop in the area.

You can have a deviated septum,

and as a result, you're constantly mouth breathing,

which causes you to drool

and wake up dry mouth, dry mucus membranes,

discomfort, your throat feels like sandpaper,

you get sick more often.

You don't get good quality sleep.

You can have sleep apnea, you could snore.

So breathing through your nose while you're sleeping

is actually optimal.

How can I make a scar disappear?

There's different levels to this,

depending on how aggressive you wanna be.

The earlier you start intervening in the healing process,

the better outcomes you're gonna get.

And this starts with just keeping wounds covered as a start.

That's a very important part of it.

Also, depending on how open the wound is,

will decide how bad the scar is.

In some instances it might be better

to get your wound sutured,

especially by someone who's like a plastic surgeon

if it's in a visible area.

Next, you have some topical options.

There are all sorts of different creams out there

that can help with scars.

The next level of it can be actually cosmetic procedures

where you go in to see a dermatologist

to get some laser treatments.

And these laser treatments can actually resurface the skin,

allowing the scar to look less visible.

And then the final level

is actually there's scar revision surgery,

where uniquely, because of our vision,

you can actually do a unique type of scar called a Z-scar

where it tricks your eye into not seeing the scar.

It's called a Z-suture or a Z-scar.

Really cool stuff.

In fact, Dr. Bhanusali, who you've seen on this channel,

has actually done a good amount of pro bono scar work,

including one young boy who was attacked by a dog

in protecting his little sister.

And Dr. Bhanusali had his scars go from this to this.

Truly amazing work.

Roy Henson, I've heard that if you have toenail fungus

peeing on your toes in the shower will kill the fungus.

Is this true?

No, it's not true.

And actually toenail fungus

is notoriously hard to get rid of.

In fact, there are some topical antifungal medications

that you could use.

You have to use 'em for like a really long time.

I'm talking basically a year.

And even then, if you use it perfectly,

it still may not work.

But then if you go the oral route

and you take oral antifungal medication,

it is more likely to work.

But then there are more likely chance

of you having a side effect.

How do I ensure healthy beard growth?

I think it's about keeping the area well moisturized, clean.

You really wanna avoid folliculitis

because that can damage a beard.

But in reality, a lot of the supplements

and miracle promises that exist for beard stuff

literally just condition the actual hair.

They don't actually facilitate healthier growth.

I've actually struggled with my beard in the past

because I've had kind of some patchy areas.

And if you want me to,

I have considered doing a hair transplant on my beard.

I forgot where I have the little spot here.

I was thinking about taking some facial hair from here

and putting it here to complete my beard.

Not because I care at all

what my beard really looks like at this point in my life,

but I think it would be a cool experiment for you to see

how we could actually transplant actual hair follicles

from here to here.

I was gonna do that a couple years ago,

but because I was boxing,

I couldn't sweat for multiple weeks on end

while this procedure was ongoing.

So I couldn't do it.

But if you want me to do it, let me know in the comments.

Who would survive longer in the wild you or Bear?

Me easily,

even though I'm scared of insects and bugs and all that.

No, don't do it, no.

Bear's a chicken.

I would know how to like run and hide and be a proper prey.

I'm a good prey. He's bad prey.

He'll like say, "What's up?" to the predators.

Although he might be like one of those deer

that become friends with the cheetah.

(gentle music)

I just got a new cat.

She's really playful,

but I'm afraid of getting hurt if she bites

or scratches my hand really badly.

Is there a real risk of that or am I overreacting?

Okay, you're actually not overreacting.

Cat bites can be really problematic.

There was a Mayo Clinic study

that showed one in three people that got bitten by a cat

ended up getting hospitalized for it.

Two thirds of the people

that were hospitalized ended up needing surgery.

The reason why I think cat bites are more problematic,

unlike dogs who have these blunted teeth

and larger teeth that cause a lot of bleeding,

cat teeth are more pinpoint and sharp and go deeper.

So they actually seed the bacteria deep inside the body,

sometimes into the joint or into the tendon sheath.

And as a result, that bacteria gets trapped in there

and spreads causing a potential skin infection,

cellulitis into the joint, or septic arthritis,

or worse off spreading

and seeding throughout the blood,

causing a septicemia or sepsis.

So the reason for that,

and it's kind of similar to dog bites,

is there is a bacteria and cat's mouths called Pasteurella.

It's a serious bacteria that requires antibiotics.

Don't sleep on cat bites.

Also, there's cat scratch fever.

There's even things from kitty litter

and why we talk about pregnant women

not changing kitty litter

because of how problematic that could be.

There's all sorts of cat-related illnesses.

In fact, maybe I should do a whole video on that.

But then the cat people will come for me. (cat meows)

I drink two to three cups of coffee a day.

If I stop drinking for a day, get a headache,

what can I do to stop the headaches?

There is a condition called caffeine withdrawal headache,

and it usually comes on pretty quickly when your body

gets used to essentially developing a tolerance

or a dependence on caffeine,

where if you don't have caffeine over a period

of 36/48 hours, the blood vessels in your brain

are thought to swell a little bit

because the lack of caffeine.

And when they swell, that pressure increases

and you start getting one of these withdrawal headaches.

That's the proposed mechanism.

It's not 100% proven,

but usually just having one cup of coffee on your off day

will decrease the sensation of that headache

if it is caused by a caffeine withdrawal.

What's cool about caffeine

is that while your body does build up a tolerance,

getting your body to get rid of that tolerance

is a fairly quick process.

Meaning just doing a few days without coffee

will allow your body to get a really strong kick of caffeine

on the fourth or fifth day when you actually reintroduce it.

Pretty cool stuff.

We've learned that through athletic trials.

Emma, is it possible to cure vertigo?

It can be treated.

It really depends on what the cause of vertigo is,

because while vertigo is labeled as a condition,

there's a lot of conditions that cause vertigo.

And I like to consider vertigo more of a symptom.

Very commonly I have patients come in

with a condition called BPPV,

benign positional paroxysmal vertigo.

And this happens quite frequently

when someone changes head positions really quickly,

where the little crystals inside their semicircular canals

are kind of stuck or misplaced.

And as a result,

they experience this really severe sensation of vertigo

that is short lasting,

but is triggered by some unique head movements.

It's benign, meaning it's not bad.

It's positional based on the position.

And paroxysmal means it doesn't happen all the time.

And for that, we actually do a maneuver

called an Epley maneuver

where we can teach you to do it in the office

or you could do it yourself at home where you aim

to reposition those crystals in your ear

and can actually help battle some

of those symptoms of vertigo.

But that's not the only form of vertigo, there's a lot.

Is there health risk to riding roller coasters

or going to haunted houses where your heart rate spikes

to super high levels?

I would say there are probably health risks

more musculoskeletal than anything

being on a rollercoaster like jamming your neck around

unless you have a preexisting heart condition or something.

But if you're an average healthy person,

having your heart rate go up is kind of physiologic.

When I say physiologic, that means it's normal.

It's not normal to have your heart rate

go up to 150, 160 as an adult if you're at rest.

But if you're in the process of being scared

or you're running, it is normal for it to go up there.

That's called physiologic heart rate range.

That's why when someone measures their blood pressure

like standing and talking to somebody,

I say, that's not a resting blood pressure measurement.

So I can't diagnose you with hypertension off of that.

I need you to sit still, relax for five minutes

and do it properly as the CDC does it.

Only then can you get a proper resting blood pressure

'cause that's what I'm interested in.

Not the fact that your blood pressure adjusts

to whatever exercise or physiologic condition

that your body's experiencing.

Is it theoretically popular to exercise so much

and burn so many calories that you stop pooping?

No, because there's components that you have to excrete.

That's why it's called excretion.

The more fibrous foods you contain,

the more stool bulking supplements you take,

the bigger your stools can be.

And sometimes that's beneficial, sometimes it's problematic.

It really depends person to person.

This is why fiber supplements

for some people can help get rid of constipation

and others, it can cause constipation.

So you gotta be really careful

and toe that line very gently.

Can stress cause acne?

Stress can put you into a pro-inflammatory state,

so to some degree can cause acne,

even if you just look at stress

creating higher blood sugars.

That absolutely can happen from a hormonal standpoint.