Marco is considering leaving his wife. She yells at him, throws objects against the wall, hits the dog, and tells Marco that he is ugly. Which factor is an indication that Marco should leave right away and seek help?

Marco’s wife is unwilling to change.
Marco may be in physical danger.
Marco’s wife is ignoring him.
Marco’s friends tell him that he should leave the relationship.

People who utilizes the progression principle will ensure their exercise program increases in frequency, intensity, time, and type. the changes need to happen gradually in order to ensure they make gains in their fitness program. a person who doesn't utilize the progression principle can still gain health benefits from exercising, but will not continue to improve in cardiovascular fitness.