During menstruation, the sensitivity of a woman's middle finger is reduced.
47
It has been shown that caffeine causes headaches when stopped suddenly and can cause morning headaches that are relieved by a dose of caffeine.
101
A hard working adult sweats up to 4 gallons per day. Most of the sweat evaporates before a person realizes it's there, though!
25
There's 100 trillion good bacteria living in your body.
17
One or two alcohol drinks a day can be anti-inflammatory.
75
Enamel is hardest substance in the human body.
61
Your ribs move about 5 million times a year, every time you breathe!
60
Each nostril of a human being register smell in a different way. Smells that are made from the right nostril are more pleasant than the left.
38