Your skin is actually an organ.
88
Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
The human brain is more active during sleep than during the day.
28
Men have larger hearts; women's hearts beat faster.
77
A human being loses an average of 40 to 100 strands of hair a day.
133
Our brains have a negativity bias and will remember bad memories more than good ones.
15
A toothbrush within 6 feet of a toilet can get airborne bacteria from flushing.
15