Match each disease with the correct symptom.
1. heart attack
2. unexplained weight loss
3. low blood sugar
4. confusion
5. paralysis
6. muscle stiffness
7. coughing

als
alzheimer's disease
cancer
parkinson's disease
influenza
diabetes
coronary heart disease

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.

What do you mean exactly