After age 30, the brain begins to lose about 50,000 neurons per day - shrinking the brain .25% each year.
55
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
The human body contains over a billion miles of DNA.
147
The levels of two stress hormones, cortisol and epinephrine which suppress the body's immune system, will actually drop after a dose of laughter.
112
There's 100 trillion good bacteria living in your body.
17
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118