The first research studies in exercise epidemiology focused on which of the following? group of answer choices type 2 diabetes
a. the relationship between coronary heart disease and physical activity cancer
b. the relationship between osteoporosis and physical activity

the first research studies in exercise epidemiology were focused on what option A says

Explanation:

i need the a b or c but mental disorders include repetitiveness,unable to listen, wanting to kill people, thinking that you are perfect, sexuality toward the wrong age types younger than you like a child bad reputations cutting yourself abuse! these are sad but these are true! the titles for some of these are ptsd and adhd. you need to go to jail or get an expert counselor if you face any of these problems or if you have indeed been involved!

d they all are treatable but they never completely go away