15 points and brainliest! Thank you :P 1. Discuss why you think essential oils are gaining popularity?

2. Discuss a health claim regarding essential oils that you learned about that surprised you the most.

Write a paragraph about why the respiratory system is important and we need to breathe easily. (guys i really need ) x(

[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.

Can occur if you do not modify your workout after a break