Hypertension is called the Silent Killer because it often has NO symptoms until after problems are caused. health problems hypertension can cause are
1) Stroke
2) Blindness
3) Kidney failure
4) Heart disease
Diagnosing disorders early can help you to be able to make important decisions while there is still time. If you find a disorder too late, you won't be able to do much about it. The problem is that you don't have all the information, which increases difficulty to accurately diagnose which disorder, such as dementia and amnesia.
It is C because you always have a chance that you will cause an injury. No matter how fit you are you will expeirence fatigue at some point. and it is good to change ur exercise routine but dont completely quit it