Me answer these questions for health:
1.) why do people who start smoking at a young age and continue into adulthood have a higher risk for related diseases?
2.) name five diseases for which obesity is a risk factor.
3.) why does watching television or playing video games contribute to obesity?
4.) list two effects of sun exposure.
5.) give an example of one short-term and one long-term behavioral impact on health.
6.) why might lack of sleep increase risk factors for depression and anxiety?

Explain how to barriers you describe in a part can lead to long term consequences related to risk behavior and negative health outcomes for young people

Larry is taking a walk in the park, the pollen in the air makes him sneeze consistently what line of defense is his immune system exhibiting

[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.