Human BodyMuscles
About one person in seven is missing a forearm muscle.
Press your thumb to your little finger — if no tendon rises, you never had it.
Source
This fact is written from the English Wikipedia article it links to, so you can check every word in one tap. Fact Drop rates that source 4 out of 5 for credibility, and the rating travels with the fact on the back of its card in the app.
More human body facts
Human body facts about the one you are sitting in. Roughly 8% of your DNA came from ancient viruses, you almost certainly have mites living on your face, and a newborn can breathe and swallow at the same time. Every fact links to the reference behind it.
- One bone in your body touches no other bone.
- Bone is stronger than concrete.
- Enamel is the hardest thing your body makes and it never grows back.
- Babies have no kneecaps in the usual sense.
- Babies are born with 300 bones and lose nearly 100 of them.
- The tiny muscles that raise goosebumps are useless for warmth on a nearly hairless animal, but they anchor the stem cells that grow new hair.