Overload, or placement of greater than normal physical demand placed on muscles or muscle groups, can be achieved by increasing three different elements. what are two of them?

The answer is either 3 or 4

He feel that parents aren't responsible for their children's happiness.

Subtract your 2-minute heart rate from the heart rate you took immediately after exercising. the faster your heart rate recovers (or slows down ) the fitter and healthier your heart. if the difference between the two numbers is: less than 22: your biological age is slightly older than your calendar age