A few things can include taking a hot shower before bed, make sure you've completed everything you needed to do for the day, and go to bed on the right time, a bad habit would probably be staying up late to watch a movie or something
D. Epinephrine (adrenaline) is a monoamine produced in the adrenal medulla.
Second Hand Smoke is the correct answer
Answer: All of the components that make up the body.
