Can bacteria be both harmful and helpful to the human body and if so why?

Why is it important to know the difference between stressors we can control and those we can't? a)we can neglect the effects of uncontrollable stressors and focus on the controllable ones. b) it gives us a sense of power to know that we have control over certain stressors. c)it us come up with strategies to reduce the effects of a stressor.

If your goal is to improve your person relationships with your friends at school, which category would it fall into? a. physical b. emotional c. social d. academic

What factors are contributing to the increase in obesity among children?