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15 Biggest Health Myths You Still Believe (Doctors Debunked!)
Oct 17, 2025
Think you know the truth about health? Think again. In this video, we uncover the Top 15 health myths doctors want you to stop believing — once and for all! From common fitness misconceptions to diet lies and old-school medical myths, you’ll be surprised by what’s actually false. These are the most widespread health myths that could be stopping you from living your healthiest life. Watch till the end to see how many of these you’ve believed! 💡 Don’t forget to like, share, and subscribe for more Top10s You Should Know videos on health, fitness, and personal growth.
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0:00
Hello and welcome back to Top 10s You
0:02
Should Know. Let me ask you something.
0:04
How many facts about health do you
0:06
believe without question? Doctors see it
0:09
every day. People clinging to outdated
0:11
beliefs instead of real science. So,
0:14
today we're exposing the top 15 health
0:16
myths doctors want you to stop
0:17
believing. Pay attention because one of
0:20
these might change the way you look at
0:21
your own body forever. One, you need to
0:25
drink eight glasses of water a day.
0:27
Doctors roll their eyes at this one
0:29
because hydration doesn't come in a
0:31
one-sizefits-all formula. The eight
0:33
glasses rule is arbitrary.
0:36
In reality, your hydration needs depend
0:38
on your body size, activity level, diet,
0:40
and climate. Some people need more, some
0:43
less. Plus, water isn't your only source
0:46
of hydration. Fruits, vegetables, soups,
0:48
and even tea contribute. Forcing
0:50
yourself to gulp eight glasses when
0:52
you're not thirsty can actually throw
0:54
off your body's electrolyte balance. The
0:57
smarter rule, listen to your body. Two,
1:00
cracking your knuckles causes arthritis.
1:03
This myth has been haunting people for
1:05
decades. The truth, cracking your
1:07
knuckles doesn't cause arthritis. That
1:09
popping sound comes from gas bubbles
1:11
bursting in the joint fluid, not from
1:13
bones grinding. Multiple studies show no
1:16
link between habitual knuckle cracking
1:18
and arthritis risk. While excessive
1:20
cracking may cause minor swelling or
1:22
grip weakness, it's not destroying your
1:24
joints. Doctors want people to focus on
1:27
real arthritis risks, obesity, genetics,
1:30
injury, and autoimmune conditions, not
1:32
harmless fidgeting. Three, carbs are
1:35
always bad for you. Carbs have been
1:37
demonized in every fat diet. But the
1:39
truth is, not all carbs are created
1:41
equal. Refined carbs like white bread
1:43
and pastries can spike blood sugar. Yes.
1:46
But complex carbs, whole grains,
1:48
legumes, fruits, and vegetables are
1:50
essential fuel for your brain and body.
1:53
In fact, your brain runs primarily on
1:55
glucose. Doctors warn that cutting out
1:57
all carbs can lead to fatigue, mood
1:59
swings, and nutrient deficiencies. The
2:01
real enemy isn't carbs, but processed
2:04
junk. Whole food carbs eaten in balance
2:06
are heart protective, energizing, and
2:08
critical for health. Four, detox teas
2:12
cleanse your body. This myth is one of
2:14
the biggest scams in modern wellness.
2:17
Detox teas don't detoxify your body.
2:19
Your liver, kidneys, lungs, and skin
2:21
already do that naturally 24/7.
2:24
Most of these tees are just laxatives or
2:26
diuretics which flush out water weight
2:28
and give the illusion of cleansing. In
2:30
reality, overusing them can cause
2:32
dehydration, electrolyte imbalances, and
2:34
even harm your digestive system. Doctors
2:37
warn if something claims to detox your
2:39
body, it's probably a marketing ploy.
2:42
True detox is built in and it happens
2:44
every day thanks to your organs. Def
2:47
means safe. This one is dangerous. Just
2:50
because something is natural doesn't
2:52
mean it's harmless. Poison ivy is
2:55
natural. Cyanide is natural. Countless
2:57
toxic plants are natural. Herbal
3:00
supplements can interact with
3:01
prescription medications sometimes with
3:03
deadly consequences. For example, St.
3:06
John's wart interferes with
3:07
anti-depressants and jinseng can raise
3:09
blood pressure dangerously. Doctors want
3:12
people to stop equating natural with
3:14
safe and instead consult professionals
3:16
before mixing herbs or supplements with
3:18
medication.
3:20
Six, you need daily vitamins to be
3:23
healthy. The supplement industry thrives
3:26
on this myth. The truth is most people
3:28
get enough vitamins from a balanced
3:30
diet. Taking unnecessary supplements not
3:33
only wastes money, but can actually harm
3:34
you. Too much vitamin A can damage the
3:37
liver. Excess iron can overload your
3:39
system. and too much vitamin C can cause
3:41
kidney stones. Doctors prescribe
3:44
supplements only when deficiencies are
3:46
proven through blood work. The
3:48
healthiest strategy is not popping
3:49
pills, but eating real whole foods that
3:52
provide nutrients in perfect natural
3:54
balance. Seven, you should avoid all
3:57
fats. This outdated myth from the
4:00
low-fat craze of the '90s still lingers.
4:02
But science now proves that healthy fats
4:05
like those in avocados, olive oil, nuts,
4:07
and fish are critical for heart health,
4:09
hormone balance, and brain function.
4:12
What's dangerous are trans fats, and
4:14
heavily processed oils. Cutting out all
4:17
fat can wreck your energy, dry out your
4:19
skin, and even mess with your mood.
4:21
Doctors emphasize balance. It's not
4:23
about avoiding fat, but choosing the
4:25
right kind. Up eight. You can out
4:28
exercise a bad diet. Doctors see this
4:31
mistake all the time. People binge on
4:33
junk food and justify it by saying
4:35
they'll burn it off at the gym. But the
4:37
body doesn't work that way. Exercise is
4:39
powerful, but it cannot erase the damage
4:42
caused by processed food, high sugar,
4:44
and excessive alcohol. A bad diet
4:46
inflames your arteries, damages your
4:48
gut, and spikes your blood pressure,
4:50
regardless of how much you sweat.
4:53
Movement and nutrition go hand in hand.
4:55
one can't cancel out the other. If you
4:58
feel fine, you're healthy. This is one
5:01
of the most misleading beliefs. Many
5:03
serious conditions like high blood
5:05
pressure, diabetes, and even some
5:07
cancers can develop silently for years
5:09
without symptoms. By the time you feel
5:12
something, the disease may already be
5:14
advanced. That's why doctors stress the
5:16
importance of regular checkups, blood
5:18
tests, and screenings. Prevention is
5:20
always better than cure. And waiting
5:22
until you feel sick is often waiting too
5:25
long. 10. You should always stretch
5:27
before exercise.
5:29
Here's a surprising one. Static
5:32
stretching before workouts doesn't
5:33
prevent injuries. In fact, it can weaken
5:36
muscles and reduce performance. Doctors
5:39
now recommend dynamic warm-ups instead.
5:42
Movements that prepare muscles and
5:43
joints for action. Static stretching is
5:46
better for cooling down after exercise.
5:48
So, if you've been forcing yourself into
5:50
toe touches before a run, you've been
5:52
following an outdated myth. 11.
5:55
Microwaves make food toxic. Despite
5:57
internet rumors, microwaves don't zap
6:00
nutrients or make food radioactive. In
6:02
fact, microwaving often preserves
6:05
nutrients better than boiling since it
6:07
uses shorter cooking times. Microwaves
6:09
use nonionizing radiation, which is safe
6:12
and doesn't make food dangerous. Doctors
6:14
wish people would stop fearing
6:16
microwaves and instead focus on the real
6:18
problem. The processed food you put
6:21
inside, not the appliance itself. 12.
6:24
Skipping meals helps you lose weight.
6:27
Many people think skipping meals will
6:28
shed pounds, but it often backfires.
6:31
Skipping meals slows metabolism, spikes
6:34
hunger hormones, and increases the
6:36
chance of binge eating later. Doctors
6:38
explain that stable, balanced eating is
6:40
far healthier than starving your body
6:42
into rebound cravings. Long-term,
6:45
skipping meals can harm blood sugar
6:46
stability and nutrient intake, putting
6:49
stress on your entire system. 13. Cold
6:52
weather causes colds. This myth has been
6:55
passed down for generations, but cold
6:57
weather itself doesn't cause illness.
6:59
Viruses do. The reason more people get
7:01
sick in winter is that we spend more
7:03
time indoors in close contact with poor
7:05
ventilation. Dry air also weakens nasal
7:08
defenses. Bundling up is great for
7:10
warmth, but it won't stop a virus.
7:13
Washing hands, improving ventilation,
7:15
and avoiding close contact when sick
7:17
matter far more than the weather
7:18
outside.
7:20
14. Muscle turns into fat if you stop
7:23
exercising. This myth is rooted in
7:25
misunderstanding. Muscle and fat are
7:28
completely different tissues. One cannot
7:30
transform into the other. When you stop
7:32
exercising, your muscles shrink from
7:34
lack of use. And if you keep eating the
7:36
same way, fat increases, giving the
7:39
illusion that muscle turned into fat.
7:42
Doctors want people to know your body
7:44
isn't magic clay. What really happens is
7:47
a loss of muscle tone paired with fat
7:49
gain from lifestyle change. 15. Pain is
7:52
always a sign to stop moving. Many
7:54
people avoid exercise because of aches
7:56
and soreness, believing pain always
7:59
means harm. But doctors clarify mild
8:02
soreness is normal when building
8:04
strength. Avoiding all movement actually
8:06
makes stiffness and pain worse,
8:08
especially with conditions like
8:09
arthritis. The real danger is ignoring
8:12
sharp, persistent pain that does need
8:14
medical attention. But general
8:16
discomfort often means your body is
8:18
adapting, not breaking. Listening
8:20
intelligently to pain is key, not
8:22
running from it. And there you have it,
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the top 15 health myths doctors want you
8:28
to stop believing. The truth is, health
8:31
isn't about clinging to old wives tales
8:33
or internet fads. It's about science,
8:36
awareness, and balance. Now, I want to
8:39
hear from you. Which of these myths
8:41
surprised you the most? Have you
8:43
believed any of them until now? Let us
8:45
know in the comments. Your story might
8:47
just free someone else from a dangerous
8:49
myth.
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