Which is considered a high-priority health issue in the united states? a.) autoimmune disease b.) allergies c.) reproductive health d.) degenerative muscle disorders

Answer is A. Auto immune disease is of the highest priority as it can lead to rapid death.

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.