Answer:
It was very difficult but then I just told myself I can do it
Explanation:
I really did not no what you meant
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 both but the best would be the blood sugar