If you are visiting with or talking on the phone with a friend who threatens immediate suicide, what should you do? a: reassure your friend that he or she has a lot to live forb: call 911 or take your friend to the emergency roomc: speak with your friend's parents or gaurdiansd: give your friend an emergency health hotline number

[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.

How often should you go to the grocery store? creating a schedule to go the grocery store is an effective method to meal planning. the meal manager should go to the store at least a .

For 20 continuous minutes is an aerobic workout. doing crunches fencing lifting weights stretching