Participating in extreme sports can help your cardiovascular system work properly and better because extreme sports usually are very taxing in terms of being an aerobic sport which also puts a lot of burden on the aerobic system. Another benefit would be not so health-related but more personal; doing extreme sports and being close to death - which can hppen - makes one more appreciative and aware of life and death.
I would say Frequency is how often you perform an activity, and Intensity is how hard/intensely you perform the activity.
<span>Body's ability to endure 20 minutes or more of strenuous, continuous exercise
-with oxygen
-heart becomes stronger and more efficient
-best thing you can do for your body
</span><span>Aerobic exercise</span>
A:2 if you have no anxiety, you feel better.
B:1 Increasing work productivity will help engage your brain more
C:3 Encouraging yourself will make you feel better about yourself.
