Your heart rate can rise as much as 30% during a yawn.
69
Our brains have a negativity bias and will remember bad memories more than good ones.
15
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
It takes 17 muscles to smile, 43 to frown.
65
According to a study conducted by the University of South Carolina, Marijuana can be used to reduce inflammation and treat autoimmune diseases such as arthritis, lupus, colitis, and multiple sclerosis.
25
Panophobia is the fear of everything.
52
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33