There's 100 trillion good bacteria living in your body.
17
Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
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
The human brain uses approximately as much energy as a 10 watt light bulb.
120
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
17
The human body contains over a billion miles of DNA.
147