The smallest human penis ever recorded was just 5/8 of an inch long!
77
Your spit has a painkiller 6 times stronger than morphine. It contains a substance called opiorphin that is stronger than morphine.
39
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26
Clinophobia is the fear of beds!
30
If your stomach didn't produce a new layer of mucous every two weeks, it would digest itself.
33
When you fall in love, that 'high' feeling is caused by a flood of dopamine that is similar to that of cocaine.
44
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Every cigarette smoked cuts at least five minutes of life on average, which is roughly the time it takes to smoke one cigarette.
118