What risk factors has the most immediate impact on a person's health?

by going smokefree, you could improve the well-being of your friends, family, coworkers, and even your pets. here’s how the cigarettes you smoke affect the people around you.

the more fit you are, the faster the recovery. your heart rate drops most sharply in the first minute after you stop exercising; it should then fall about 20 beats a minute—a drop of less than 12 beats a minute is considered abnormal. this “recovery heart rate” is measured as part of an exercise stress test.