Home > Topic > prolactin

prolactin QUOTES

prolactin QUOTES

1 " What is it, she asks me, why do people cry? Why do we cry when we're happy and when we're sad or hurt? I tell her what I know or think I know: that the body does not distinguish between emotional and physical pain; the muscles around the lachrymal glands receive a message from the brain, then tighten and squeeze out tears. Tears contain high levels of the hormone ACTH and prolactin, endorphins (which we know are mood-altering and pain-killing), as well as thirty times more manganese than is found in blood, suggesting that human tears can concentrate and remove harmful substances from the body. Prolactin in humans controls fluid balance; by the age of eighteen women have 60 percent more prolactin than men, which may explain why women seem to cry more often. I tell her that sadness--like happiness--is an intense feeling of being alive, of having essence. I try to explain to her my own nonscientific theory: that crying is about weight or heft, that we cry when our bodies feel too light or too heavy to bear or hold on to language. "

2 " Two chemicals called actin and myosin evolved eons ago to allow the muscles in insect wings to contract and relax. Thus, insects learned to fly. When one of those paired molecules are absent, wings will grow but they cannot flap and are therefore useless. Today, the same two proteins are responsible for the beating of the human heart, and when one is absent, the person’s heartbeat is inefficient and weak, ultimately leading to heart failure.

Again, science marvels at the way molecules adapt over millions of years, but isn’t there a deeper intent? In our hearts, we feel the impulse to fly, to break free of boundaries. Isn’t that the same impulse nature expressed when insects began to take flight? The prolactin that generates milk in a mother’s breast is unchanged from the prolactin that sends salmon upstream to breed, enabling them to cross from saltwater to fresh. "

― Deepak Chopra , The Book of Secrets: Unlocking the Hidden Dimensions of Your Life