College students often experience decreased melatonin and difficulty falling asleep as a result of Group of answer choices 1. living in a noisy residence hall. 2. exercising in the afternoon or evening too much screen time after dark. 3. eating a snack in the evening.

Which of the following statements about the societal costs of tobacco use is true? a. tobacco use affects the tax rate of only those individuals who smoke. b. the negative effects of tobacco use are only experienced by the smoker. c. tobacco users contribute to an overall loss of productivity. d. increased healthcare costs are mainly absorbed by tobacco users