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
In 30 minutes, the average body gives off enough heat (combined) to bring a half gallon of water to boil.
199
The brain receives 20% of the body’s oxygen and 25% of total body glucose utilization, despite it accounting for only 2% of a person’s weight (about 1.4 kilograms).
8
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
You see your nose at all times, your brain just chooses to ignore it.
30
You can hear the blood flowing through your ears if you find a quiet place and cover them tightly.
19
Oxygen, carbon, hydrogen and nitrogen make up 90% of the human body.
118