Specificity is a training principle that is an important part of any fitness program. Choose three of the remaining training principles and explain the role of each in a fitness plan.

Who is considered the father of modern behavioralism? a fred b jung simmer pavlov

1. controls how much sugar is in the blood pancreas 2. controls the other glands pituitary gland 3. manufactured by the brain to relieve pain thyroid 4. gland that regulates the body's energy levels endorphins

About how many individuals in the us go bankrupt each year due to medical bills?