Seatbelts can your chances of surviving a crash.

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

Health and cardio respiratory fitness occurs when the heart is working, at minimum, 50 percent of heart rate reserve. true or false

This is a negative reaction to food that doesn’t involve the immune system