Answer: It weakens the immune system.
Explanation:
There are hundreds of different Cancer types. Too many to list here..
During the resting heart, that is, the number of times the heart beats per minute while the body is relaxed and at rest does not change significantly with age; But with age, there are changes in the ability of the heart to increase its rate during exercise and other moments of stress. Younger hearts usually usually speed up more faster than older ones when challenged. The maximum heart rate, the highest heart rate one can achieve as measured by a cardiac stress test declines gradually in adults as they age. The cause of this is slowing down of the heart's pacemaker cells.
Answer:
Living a safe lifestyle like doing low risks things would mean you wouldnt be putting your self at risk for stress and danger. For example, your friends may be jumping off a cliff into the water and they end up getting injured. You on the other hand didnt do anything with the risk so you ended up bring fine.
