Which of the following is not usually a factor in deciding to use an illegal drug?
a. peer pressure at school
b. the original source of the drug
c. how role models live their lives
d. messages on television and in movies

[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.

The frequency in wich you perform certain exercise depends on the blank of the exercise

When making a bed you are using good body mechanics when you