Fact Checks
Clear answers to common questions about science, health, and persistent myths. Each summary describes a finding originally published by an established fact-checking organization and links to the original review.
26 fact checks · How these are made · Corrections
Health
False
Do vaccines cause autism?
No. The evidence does not support this claim.
Science
False
Do humans only use 10 percent of their brains?
No. The evidence does not support this claim.
Science
False
Is the Great Wall of China visible from space with the naked eye?
No. The evidence does not support this claim.
Science
False
Were the Apollo Moon landings faked?
No. The evidence does not support this claim.
Science
False
Is the Earth flat?
No. The evidence does not support this claim.
Technology
False
Do 5G networks spread COVID-19?
No. The evidence does not support this claim.
Health
Mostly false
Is MSG dangerous to eat?
Largely no. The evidence mostly does not support this claim.
Health
Mostly false
Does cracking your knuckles cause arthritis?
Largely no. The evidence mostly does not support this claim.
Myths
False
Does the average person swallow eight spiders a year?
No. The evidence does not support this claim.
Myths
False
Do goldfish have a memory of only three seconds?
No. The evidence does not support this claim.
Myths
False
Are bats blind?
No. The evidence does not support this claim.
Science
False
Is it true that lightning never strikes the same place twice?
No. The evidence does not support this claim.
Health
Mostly false
Does everyone need to drink eight glasses of water a day?
Largely no. The evidence mostly does not support this claim.
Science
Mostly false
Do humans have only five senses?
Largely no. The evidence mostly does not support this claim.
Myths
False
Do bulls get angry at the color red?
No. The evidence does not support this claim.
Health
False
Does shaving make hair grow back thicker and darker?
No. The evidence does not support this claim.
Science
False
Does the tongue have separate zones for sweet, sour, salty, and bitter?
No. The evidence does not support this claim.
Science
False
Do hair and fingernails keep growing after death?
No. The evidence does not support this claim.
History
False
Did Vikings wear horned helmets?
No. The evidence does not support this claim.
Myths
Mostly false
Do chameleons change color to match their surroundings?
Largely no. The evidence mostly does not support this claim.
Science
False
Is the blood in your veins blue?
No. The evidence does not support this claim.
Health
False
Does sugar make children hyperactive?
No. The evidence does not support this claim.
Myths
False
Are daddy longlegs the most venomous spiders but unable to bite?
No. The evidence does not support this claim.
Myths
False
Do frogs and toads give you warts?
No. The evidence does not support this claim.
Health
False
Do you lose most of your body heat through your head?
No. The evidence does not support this claim.
Science
Mostly false
Does one dog year equal seven human years?
Largely no. The evidence mostly does not support this claim.
FactGuard summarizes third-party fact-checks for general information only, not legal, medical, or financial advice. Found something wrong? Report an error.