Research indicates that using electronic devices before bed may make it difficult for people to fall asleep. the light appears to interfere with the body's ability to create this hormone, which is responsible for sleep and wake cycles. a. endorphins. b. melatonin. c. progesterone. d. eustress

Ihave a really high metabolism and only weigh 70 pounds (13 almost 14). people always ask me two questions: do you ever eat and how do you eat so much and stay so skinny. i am worried that a high metabolism wont me forever. what are some safe steps i can take to maintain being fit. (also, i already work out i am a dancer so i get cardio a lot)

Example of health promoting behavior

Which is the link between heredity and tobacco addiction