<|im_start|>user
Why do people exercise?<|im_end|>
<|im_start|>assistant
Exercise provides many benefits to physical and mental health.  It increases strength, cardiovascular health, extends life expectancy, and generally improve people mental and emotional well-being.  

Often exercise occur during very enjoyable activities,  such as sports and outdoor recreation.  Those activities attract people to exercising.<|im_end|>
