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
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Chocolate is associated with the release of serotonin, the hormone that makes you feel relaxed, calm, and happy.
183
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346