Fact check: Doctor Debunks Common Health Myths

Doctor Debunks Common Health Myths | WIRED

Original video: https://www.youtube.com/watch?v=JuhDpZ9uQY4

Fact checked on: August 6, 2026

Fact Check Analysis

Summary

The transcript is broadly reliable and correctly challenges several common health myths. Most notably, it gives sound advice about CPR, nosebleeds, burns, vaping risks, and avoiding ingestion of camphor-containing products.

However, some statements are oversimplified or potentially misleading. CPR guidance should include checking responsiveness and breathing, calling emergency services, and using an AED; burn care should favor cool—not cold—running water; and vaping risks differ between adults who smoke and people who never used tobacco.

Checked claims

“If someone has no pulse, immediately start CPR.” — Partly true. A layperson should begin CPR when an adult is unresponsive and not breathing normally, or is only gasping. Pulse checks are difficult for untrained people and should not delay emergency activation or compressions. Call emergency services, send someone for an AED, and follow dispatcher instructions.
“CPR is effective if someone flatlines.” — Partly true. CPR can maintain blood flow and sometimes restore circulation, but an electrocardiographic flatline, or asystole, is not usually corrected by CPR alone and is not treated with defibrillation. CPR, medications, airway management, and treatment of the underlying cause are required. Survival depends heavily on the cause and how quickly treatment begins.
“Chest compressions should be about two inches deep and fast.” — Mostly true. For adults, recommended compressions are about 5–6 cm, or 2–2.4 inches, at 100–120 per minute. Compressors should allow complete chest recoil and minimize interruptions. Deliberately trying to break ribs is not recommended, although rib fractures can occur during effective CPR.
“Use the beat of ‘Stayin’ Alive’ for CPR.” — True as a memory aid. The song’s tempo is close to the recommended 100–120 compressions per minute. It is only a pacing mnemonic, not a substitute for CPR training or emergency instructions.
“Broken-heart syndrome is real and can be fatal.” — True. Takotsubo cardiomyopathy can follow intense emotional or physical stress and may cause temporary weakening and ballooning of the heart’s left ventricle. It can produce heart-failure complications, arrhythmias, shock, or rarely death. It can resemble a heart attack and requires urgent medical evaluation.
“Takotsubo refers to an octopus pot, and the heart can develop apical ballooning.” — Mostly true. “Takotsubo” is a Japanese octopus trap whose shape resembles the typical appearance of the affected ventricle. Apical ballooning is a common form, although not every case has that exact pattern.
“Anyone with an emotional response can develop takotsubo cardiomyopathy.” — Misleading. Severe emotional or physical stress can trigger it, but an ordinary emotional response does not generally cause the condition. It occurs disproportionately in postmenopausal women, though it can affect anyone.
“Butter should not be put on burns.” — True. Butter, oils, creams, and household substances can trap heat, irritate tissue, and complicate medical assessment. Initial treatment is cool running water, generally for about 20 minutes, as soon as possible. Ice and very cold water should be avoided because they can worsen tissue injury.
“Serious burns to the face, hands, groin, or deep burns need emergency care.” — Mostly true. Burns involving the face, hands, feet, genital or perineal areas, major joints, or extensive body surface area may require specialist assessment. The need for emergency care also depends on depth, size, mechanism, inhalation injury, and the person’s age and medical condition.
“Burns can draw water from the body and cause dehydration.” — True with qualification. Large or deep burns can cause major fluid loss through damaged skin and may require intravenous fluids and hospital admission. Small burns generally do not cause clinically significant dehydration.
“Cracking knuckles does not cause arthritis.” — Generally true. Available research has not shown that habitual knuckle cracking causes osteoarthritis. The sound is mainly associated with rapid changes in joint-fluid pressure and gas-cavity formation or collapse, rather than bones grinding together.
“Painful joint cracking should be medically assessed.” — Generally true. Cracking accompanied by pain, swelling, locking, instability, or reduced movement can indicate an underlying problem. Painless cracking is usually benign, but forceful manipulation is not risk-free.
“Neck cracking can rupture blood vessels.” — Possible but overstated. Forceful or extreme neck rotation has rarely been associated with cervical artery dissection, which can cause stroke. The absolute risk is very low, but sudden neck pain, neurological symptoms, weakness, speech difficulty, or vision changes require immediate emergency care. Routine gentle movement is not equivalent to forceful manipulation.
“Tilting the head back during a nosebleed is wrong; lean forward and pinch the nose.” — True. Leaning forward reduces swallowing or aspiration of blood. The soft lower part of the nose should be pinched continuously for about 10–15 minutes while breathing through the mouth. Persistent, heavy, recurrent, or medically complicated nosebleeds need professional evaluation.
“A migraine is more than simply a bad headache.” — True. Migraine is a neurological disorder that can involve moderate or severe pain, nausea, light and sound sensitivity, and sometimes aura. Attacks commonly last 4–72 hours if untreated, though individual symptoms vary.
“Migraines may include visual, sensory, or other neurological symptoms.” — True with terminology caveat. Aura can involve visual, sensory, speech, or other reversible neurological symptoms. “Complex migraine” is an older, imprecise term and is not generally preferred as a formal diagnosis. New or unusual neurological symptoms may indicate stroke or another emergency.
“Quiet, dark surroundings, usual medication, hydration, and sometimes caffeine may help migraine.” — Mostly true. Rest, reducing sensory stimulation, hydration when appropriate, and early use of an individual’s recommended treatment can help. Caffeine benefits some people but can worsen headaches or contribute to medication-overuse or withdrawal headaches.
“Vaping is safe.” — False. E-cigarettes are not harmless. Their aerosols can contain nicotine, ultrafine particles, flavoring chemicals, and other potentially harmful substances. They can cause dependence and respiratory or cardiovascular effects.
“Vitamin E acetate caused the major vaping-related lung-injury outbreak.” — Partly true. Vitamin E acetate was strongly linked to EVALI, the 2019 U.S. outbreak of acute lung injury, especially in illicit or modified THC products. That finding does not mean all vaping-related harm is caused by vitamin E acetate, nor that nicotine vaping products are risk-free.
“Vaping destroys alveoli and increases harm rather than reducing it.” — Misleading. Vaping can injure the lungs, but the claim that it uniformly “destroys” alveoli or always increases harm is too broad. For adults who smoke combustible cigarettes, completely switching to regulated e-cigarettes is generally considered less harmful than continuing to smoke, although it is not risk-free. Using both cigarettes and e-cigarettes may provide little benefit. Non-smokers, young people, and pregnant people should not vape.
“Nicotine replacement, medication, and counseling can help people stop nicotine use.” — True. Counseling and approved treatments such as nicotine patches, gum, lozenges, varenicline, or bupropion can improve cessation success. The best approach depends on the individual and local medical guidance.
“Vicks VapoRub can be used anywhere on the body.” — False. Products such as Vicks VapoRub have specific labeled uses and should not be swallowed, placed in the mouth, or used in the nostrils. Camphor ingestion can cause serious poisoning, including seizures. Use in children must follow the product label, and accidental ingestion requires poison-control or emergency advice.
“VapoRub should only be used on the chest.” — Partly true. The product label commonly permits use on the chest, throat, and sometimes muscles and joints, depending on the formulation and country. It should be used only as directed; “only the chest” is an oversimplification.
“An apple a day keeps the doctor away.” — False as a literal medical claim. Eating apples does not prevent illness or eliminate the need for medical care. Apples can contribute fiber and nutrients to a healthy diet, but health depends on overall diet, activity, sleep, vaccination, preventive care, and other factors.
“A well-rounded diet supports the immune system.” — True. Adequate energy, protein, vitamins, minerals, and fiber support normal immune function. No single food can replace a balanced diet or treat most infections.

Context & nuance

The CPR section needs the clearest practical correction. For an unresponsive adult who is not breathing normally, a bystander should call emergency services, obtain an AED if available, and begin hard, fast chest compressions in the center of the chest. Rescue breaths are valuable when the rescuer is trained and willing, but hands-only CPR is preferable to doing nothing.

“Flatline” is also commonly misunderstood. A monitor showing asystole does not mean that CPR can simply “bring someone back” in the ordinary sense. The monitor must be interpreted correctly, because loose electrodes or equipment failure can mimic asystole. Professional responders use a structured resuscitation algorithm.

Burn first aid should distinguish cool running water from ice or freezing water. Jewelry and restrictive clothing should be removed early if not stuck to the skin. Large, deep, electrical, chemical, or inhalation burns require urgent medical care. Chemical burns require special handling and copious irrigation, while contaminated clothing should be removed safely.

The migraine advice is reasonable for a familiar, previously diagnosed migraine, but severe or new headache symptoms can be emergencies. Immediate evaluation is warranted for a sudden “worst headache,” headache with weakness or confusion, fever and stiff neck, head injury, pregnancy-related warning signs, or a substantially different pattern.

The vaping discussion appropriately rejects the idea that vaping is safe but does not distinguish enough between absolute safety and relative risk. Combustible tobacco smoking is generally more harmful than regulated vaping, but complete cessation is safest. Vaping also creates a risk that non-smokers, especially adolescents, will become nicotine-dependent.

Finally, some statements are personal recommendations rather than factual claims—for example, the speaker’s preferred approach to neck cracking or migraine care. Such advice should not replace individualized assessment by a qualified clinician.

Takeaway

The transcript’s main myth-busting conclusions are sound, but several explanations need qualification. The safest core messages are: begin appropriate CPR promptly, treat burns with cool running water rather than butter or ice, manage nosebleeds by leaning forward and applying pressure, seek care for warning signs, avoid vaping when possible, and never ingest camphor-containing rubs.

Video transcript

- If I come up to a person and they're lying down and I realize that they don't have pulses, I should immediately start doing CPR. A lot of people tell you to do them to the beat of "Stayin' Alive" by The Bee Gees so imagine like really pumping on somebody's chest singing ♪ Ah ah ah ah staying alive ♪ [cheerful instrumental music] Hey, I'm Dr. Italo Brown, emergency physician in Palo Alto, California. Today we're gonna try to debunk some of the myths about your health and some of the things that you've been using on a day to day basis that might not be so good. You can't die from a broken heart. Broken heart syndrome is real. You could actually die [heart thumps] from a broken heart. We got a really nifty Japanese name for it called takotsubo cardiomyopathy. The word takotsubo is describing a pot, like a octopus pot. The heart takes on the shape of that octopus pot. In these situations where you have intense feelings, you have stress that is applied instantaneously. So imagine answering the phone to find out that a loved one has passed. It can cause somebody's heart to actually change shape. The ventricles, or the part that forces blood around the body can bulb out like a balloon, and we call that apical ballooning. When that heart starts to change shapes, it can lead to something that's not common or native to the heart, and that can lead to sudden death. We tend to follow the same regimen that we would follow for someone who comes in with other chest pain-like features, specifically severe chest pains. Anyone who has an emotional response, who is sentient, has the capacity to have this issue. You should put butter on a burn. You should definitely not put butter on a burn. We're not baking bread. It's probably one of the worst things to put on a burn. In most pre-hospital management of burns, we do not recommend using any creams, any lotions, whatever else is in your refrigerator, so not put that on a burn. Those chemicals can actually worsen the surface that is burned. The most severe burns that I worry about are ones that happen to the areas of the face, the hands, the groin. These burns can potentially damage a lot of other underlying function and can lead to long-term dysfunction. So if that happens, come to the emergency department immediately. Depending on the surface area covered, a burn wound can actually draw water from the body and leave you dehydrated so it's important to have adequate hydration, which is why we admit a lot of folks who have complicated burns of second degree or third degree nature. The most common thing that we say do is put it under cold water, and then try to isolate that injury. Cracking your knuckles is bad. Cracking your knuckles doesn't necessarily lead to any bad outcomes. Most of us where told this as kids because it was just annoying. It didn't have anything to do with the real medical element to it. The sound that we hear though, [knuckle cracks] is something that frightens people or is awkward. We're usually thinking that that's bone on bone action when in factuality, it's about the fluid in between the joints. So synovial fluid helps to lubricate those joints. When we crack our knuckles, it's really just an air pocket being burst and that's what the sound is. Most folks believe that putting pressure on joints or consistently cracking these joints will lead to some form of arthritis, and that's not necessarily true. We understand that arthritis is usually a condition that develops over time, and whether you crack your knuckles or not, it can still happen. When you start to crack other parts of the body and joints, some of them actually are super relieving. You know, cracking a hip, that might make someone feel extremely better and move around a little bit more agile. When cracking is accompanied by pain, that may be an indicator to go see your normal physician and then, in some cases, it may even require an orthopedist or physical therapy. I typically don't recommend cracking your neck because if you're pushing your neck beyond its normal range of motion, you might be stretching blood vessels that are surrounding that and cause a rupture that way. So it's not so much the cracking sound but it's the motion and the exertion of force that can lead to a secondary issue. I would recommend just stretching and, you know, crack your knuckles. Sometimes, you know, you need that. [laughs] CPR is effective if someone flatlines. CPR is an extremely useful procedure. It's part of basic life support. I think that it's extremely valuable for people to know how to do basic life support, particularly compressions, because of all the things that we know, this actually saves lives. Flatlining is an absence of cardiac activity when you look at a cardiac monitor. [monitor beeps] Most people describe it as that sound boop with the flatline across. We're talking about the actual heart electrical activity. Like CPR is an entire process, whereas what we're discussing specifically are chest compressions. That's the hand over hand applying force to the external portion of the body to create that force to drive blood around. Doing that, compressions, adding ventilation, or breathing in somebody's mouth or using a breathing aid to apply oxygen to the lungs, and then doing this in succession to eventually bring someone back or regain pulses, regain cardiac activity. If I come up to a person and they're lying down and I realize that they don't have pulses I should immediately start doing CPR. And these compressions are supposed to be about two inches deep and are supposed to be fast, like rapid compressions. So I almost expect, in that first compression, to break through ribs because you need to create enough force to push blood flow around the entire body. A lot of people tell you to do them to the beat of "Stayin' Alive" by The Bee Gees. So imagine like really pumping on somebody's chest singing ♪ Ah ah ah ah staying alive ♪ That's pretty much what we do. Someone who is trained as a first responder or who has received basic life support training can initiate CPR. CPR, when done properly, can actually resuscitate people. Tilting your head back will stop a nosebleed. So most people instinctively think to lean their head back as if their like trying to use gravity to keep the blood from going down their nose, but really it's pulling it down the back part of the nose, the nasopharynx, and that directly connects to your airway so if the bleeding is so profuse or so brisk that it's filling up the mouth, it can compromise your breathing. That's dangerous. So we typically tell people to lean forward and pinch their nose really hard. With most bleeding, the goal is to apply pressure to the direct side the bleed. And because you can't reach into the nose and actually like tack down the artery, we usually recommend grabbing the cartilaginous or the cartilage portion of the nose instead of the bridge. There are different reasons why nosebleeds can occur. The most common reason is direct trauma or irritation of some part of the membranes inside the nose. So there are like small capillaries there that can rupture. The main goal is does the bleeding stop by just applying pressure? It's completely manageable at home, however if you start to have like worsening symptoms like repeat or recurrent bleeds, lightheadedness, dizziness, if the bleeding is extremely quick, you need to get in a car and go to the emergency department, but don't tilt your head back in the car. [laughs] A migraine is just a bad headache. This is not necessarily false but it's poor understanding of the difference between migraines and headaches. So when we think about headaches in general, this is tension in the head, it can be something that is pounding or pulsatile. The difference with a migraine, though, is... So we're talking about multiple hours to days of unrelenting pain. The main characteristic is that this is extremely painful and debilitating. It stops your normal function of activities, which is why we treat them so seriously. When you talk about migraines, you can have a simple migraine or a complex migraine. We usually think about complex migraines as having an aura or other features that are more sensotory to them besides just the pain element. You might feel dizziness, you might feel ringing in the ears, [bell rings] or some visual changes, blurry vision. These things come with complex migraines, and it can be extremely debilitating. So if you're at home and you start to feel that migraine build up a little bit, I usually recommend that someone goes to a very quiet space in their home, turn off all the lights, take their standard medications, and drink some water. Sometimes caffeine helps. So people will drink a tall cup of coffee to help abate some of those symptoms. Those are simple things that you can do at home to try to treat a migraine. But if it ever lasts longer than four to six hours after you do this, or several days of you trying these preventative measures, come see us. Vaping is safe. This is 100% false. Vaping is not safe. We know that vaping is a trendy thing now that people are doing. This is electronic cigarettes. Usually it's got some type of a cartridge with nicotine as a product mixed in with other products and compounds so that you can aerosolize it and inhale. We started to realize that it is so extremely harmful that it can lead to long hospital admissions and ICU stays. One of the things that people have traced the particular hazards of vaping to is vitamin E. A lot of these compounds that people are putting in to the cartridge and fluid of a vaping pen haven't been studied well. That vitamin E compound has been known to destroy the small air pockets of the lung know alveoli. This is where the harm starts. We call that acute lung injury. We know that this leads to people having severe lung dysfunction. We understand that it also ruins the lung's ability to actually grab oxygen from the bloodstream because of that material that's coating the alveoli. Most people switch from tobacco to this product because they find that they wanna be less likely to have lung cancer but still need nicotine because there is an addiction to nicotine. That is why it was initially thought as a harm reduction measure. It actually increases the type of harm that you can have. It just shifts it over from one type to another. 'Cause if you do have nicotine addiction and you need help stopping that particular craving, there are so many programs that will work with you to figure out like do you need just counseling? Is there a need for a medication assistance or patches? These are known ways to curve the appetite of nicotine. I don't recommend vaping. I think that it's harmful. It think that it is a habit that can lead to someone losing their life or their ability to breathe freely. So put the pens down, y'all. Vicks VapoRub can be used anywhere on the body. These mentholated topical ointments cannot be used in every location in the body, specifically they cannot be ingested. If you even look at one of the canisters, it has a warning label that says, "Do not swallow this." I know this because I've watched my grandfather, he used to swallow a nice little dab of Vicks, as well as rub it all over his chest and underneath his nose. He said it helped him fight a cold. Well, now that I'm a ER physician, I've heard those same stories, but they don't always end the same way. So I don't recommend using Vicks VapoRub in other locations than already designated by the manufacturers. I also don't recommend ingesting anything that has the toxic property camphor. That's the key element. You have to read the labels. Just put it on your chest. Walk around smelling like you're 78 years old. It's fine. An apple a day keeps the doctor away. This is one of the most ridiculous things I've ever heard. [laughs] If it were that easy to keep doctors away, I promise you apples wouldn't cost 59 cents, they'd be far more expensive. If you're just literally basing it on a Granny Smith apple, I'm a tell you right now that's not gonna work. The only thing that I can think of right off the bat that you can do daily that helps your immune system is to eat a well-rounded meal, and that goes for children all the way through older adults. All the necessary nutrients, you have all your macromolecules in it, some serving of fruits, vegetables, maybe a little bit of grain, some form of protein, something that's going to give you the building blocks that your body needs to do the processes through the day to keep you moving. [cheerful instrumental music] I'm Dr. Italo Brown just reminding you guys take your health seriously. Be careful about the information that you hear floating around. If it sounds weird, if it has some type of odd little story to it, chances are it might not be true. We only have one body. It's important to know what you put on your body and in your body. Let's go ahead and talk to our doctors and have a good conversation with them, and you do everything in your power to stay informed.