The conversation between human and AI assistant.
[|Human|] Why do people exercise?
[|AI|] 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.
[|Human|] 
Why do people exercise?