How can participation in physical activity lead to improved sleep patterns?

Pam currently runs on a track an hour a day, three days a week. how can she increase the intensity of her runs? start running five days a week start running in hilly areas or trails switch to walking six miles each day add 20 minutes to each run

What are the systems used to describe how information is stored in the brain? list each.

Which of the following is a nonspecific defense against pathogens? - b cells - antibodies - t-cells - inflammation