Which of these statements describes clinical depression?
1 a milder form of depression that usually follows a traumatic event
2 a medical condition that may occur due to a chemical imbalance in the brain
3 alternate feelings of extreme happiness and extreme sadness

Which of these statements describes clinical depression?
3- alternate feelings of extreme happiness and extreme sadness

True because all jobs are different and they all have chemicals that are for cleaning

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.