It takes 17 muscles to smile, 43 to frown.
65
A person can live without food for about a month, but only about a week without water.
156
There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
Within three days of death, the enzymes that once digested your food begin to eat you.
22
Clinophobia is the fear of beds!
30
Holding hands with someone you love can alleviate physical pain as well as stress and fear.
26
Falling in love raises levels of nerve growth in a person's brain for about a year and can improve their memory.
39
Ten seconds of hugging a day increases levels of oxytocin, which can reduce blood pressure, thus cutting the risk of heart disease.
26