How often should a person get regular exercise? every day for at least an hour once a week for three hours three times a week for twenty minutes five times a week for thirty minutes

Articular cartilage to shocks and prevents friction between parts.

What is the result of procrastination? a. having less time to work on tasks b. being able to plan your tasks more effectively c. having more energy to work on tasks d. getting tasks done promptly

Which of the following does not cause blindness? a. cataractsb. glaucomac. osteoarthritisd. diabetes