The numerous functions of body cells have been determined from observation and careful study of experimental:

a. observations
b. happenings
c. mistakes
d. data

According to the article, when our sleep/wake cycle breaks down, we are at an increased risk for all but which select one: a. respiratory illnesses b. dementia c. diabetes d. heart disease

This migraine wont go away and i dont feel safe taking any more medicine for the next few hours

Which health risk is associated with tanning beds