Flu shots only work about 70% of the time.
18
Your body is creating and killing about 2.4 million red blood cells per second.
17
Our brains have a negativity bias and will remember bad memories more than good ones.
15
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 study in the UK states that men need at least two "guys nights out" each week to stay healthy.
5
After an 11 year study, cell phones were shown not to increase chances of getting cancer.
14
The human heart creates enough pressure to squirt blood 30 ft.
37
Gardening is said to be one of the best exercises for maintaining healthy bones.
40