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Health & Medicine Fact-Checks

Evidence-focused health fact-checks covering medical myths, child behavior, everyday wellness claims, and common misunderstandings that need more than a quick headline. Each page separates the narrow claim from broader health advice and points readers toward source review.

Home › Fact-Checks › Health & Medicine
47 fact-checks
41 debunked
6 verified true
FALSE
Hair and nails continue to grow after death
99% confidence 517 views
→ FALSE
Sugar makes children hyperactive
96% confidence 472 views
→ FALSE
Drinking 8 glasses of water daily is scientifically proven to be necessary
91% confidence 468 views
→ FALSE
Humans only use 10% of their brain capacity.
98% confidence 468 views
→ FALSE
Coffee stunts your growth
97% confidence 462 views
→ FALSE
Reading in dim light permanently damages your eyes
95% confidence 422 views
→ FALSE
Swimming after eating causes dangerous cramps
96% confidence 420 views
→ TRUE
Vaccines have significantly reduced the prevalence of diseases like polio and measles
99% confidence 407 views
→ FALSE
Shaving makes hair grow back thicker
98% confidence 402 views
→ TRUE
Regular exercise can help reduce symptoms of depression and anxiety
96% confidence 391 views
→ FALSE
You lose most of your body heat through your head
96% confidence 386 views
→ FALSE
MSG is dangerous to your health
94% confidence 374 views
→ FALSE
Cracking your knuckles causes arthritis
97% confidence 371 views
→ FALSE
Sugar causes hyperactivity in children
95% confidence 370 views
→ FALSE
We only use 10% of our brains
99% confidence 368 views
→ FALSE
Brown eggs are healthier than white eggs
99% confidence 363 views
→ FALSE
You need to drink 8 glasses of water a day
92% confidence 356 views
→ FALSE
Microwaving food destroys most of its nutrients
92% confidence 107 views
→ FALSE
Shaving makes hair grow back thicker and darker
98% confidence 106 views
→ FALSE
Vaccines cause autism
99% confidence 87 views
→ FALSE
MSG is harmful to your health
90% confidence 79 views
→ FALSE
The five-second rule makes food safe to eat if picked up quickly enough
92% confidence 77 views
→ FALSE
Humans have a fixed number of taste buds that never regenerate
97% confidence 77 views
→ FALSE
Table salt and sea salt have vastly different nutritional value
85% confidence 70 views
→ FALSE
Alcohol makes you warmer in cold weather
90% confidence 64 views
→ TRUE
Antibiotic resistance can develop and spread between different species of bacteria
98% confidence 63 views
→ FALSE
Cold weather by itself causes the common cold
95% confidence 63 views
→ FALSE
Chewing gum stays in your stomach for seven years if swallowed
97% confidence 53 views
→ FALSE
Toads cause warts if you touch them
95% confidence 51 views
→ FALSE
The human appendix serves no function at all in the body
85% confidence 49 views
→ FALSE
It takes seven years to fully digest swallowed gum
95% confidence 45 views
→ FALSE
Cracked or spoiled food always smells bad before it becomes dangerous
95% confidence 40 views
→ FALSE
Fasting diets can 'detoxify' the body of built-up toxins
85% confidence 38 views
→ FALSE
Stress alone can turn your hair gray overnight
85% confidence 38 views
→ FALSE
Vaccines contain microchips used to track people
99% confidence 36 views
→ FALSE
The flu vaccine can give you the flu
90% confidence 33 views
→ TRUE
The human body replaces all its red blood cells roughly every few months
85% confidence 18 views
→ FALSE
You can catch a cold from being outside without a jacket
90% confidence 16 views
→ FALSE
Cracking your back releases toxins from your spine
97% confidence 16 views
→ FALSE
All bacteria are harmful to human health
99% confidence 9 views
→ TRUE
Video game addiction is officially recognized as a diagnosable disorder by the World Health Organization
90% confidence 8 views
→ FALSE
Blood is blue inside the human body before it hits oxygen
98% confidence 7 views
→ FALSE
The human tongue is the strongest muscle in the body
90% confidence 7 views
→ TRUE
Humans can survive longer without food than without sleep
85% confidence 7 views
→ FALSE
The immune system can be permanently strengthened by taking daily vitamin C megadoses
90% confidence 1 views
→ FALSE
All calories are metabolized identically by the body regardless of food source
92% confidence 1 views
→ FALSE
The human body is naturally immune to all forms of cancer without medical help
99% confidence 1 views
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