According to the recording, what are “melatonin” and “serotonin”?

At age 16, juana has an appropriate weight and eats whatever she wants whats the best stratwgy juana can use to ensure good health? a) walk once a day and start paying attention to her diet to prevent weight gain b)engage in regular. physical activity and get in the habit of eating food that is high in nutrients c) take up an aerobic sport like soccor and reduce her calorie intake to 1800 per day

[120 total points] (public health) in one of the largest human experiments ever conducted, in 1954 a randomized controlled trial was run to see whether a vaccine developed by a doctor named jonas salk was effective in preventing paralytic polio. a total of 401,974 children (ages 6–9), chosen to be representative of those who might be susceptible to the disease, were randomized to two groups: 200,745 children (the control group c) were injected with a harmless saline solution (a placebo) and the other 201,229 children (the treatment group t) were injected with salk’s vaccine.what was the point of giving saline solution to the children who didn’t get the vaccine? explain briefly.

Acne is caused by a. a strict diet b. eating at night c. hormones d. dry skin select the best answer from the choices provided. a b c d