After extended use of the drugs that treat hiv, the virus often becomes resistant and the drugs no longer work.

Astudy shows that an influenza vaccine is 71.4% effective in preventing a particular type of influenza. if 15,422 people receive the vaccine, how many would not be protected and would be likely to get infulenza?

How will your health most likely be affected if you follow the recommended guidelines for sleep, rest, and physical activty

An obese man 5'5 and 200 pounds, seta a long-term goal to loose 50 pounds which of these is a resonable benchmark he might set for himself