One way in determining your fitness level is trying to do a Full Sprint Run and holding your breath for as long as you can. That way you can determine your cardiovascular capacity and lung capacity. On improving your fitness levels you should do swimming, jogging and of course a balanced diet.
All of them could be intentional/unpreventable, we are only talking about an injury so I would say the plane crash.
Answeryour picture is blury
Explanation:
You can overdose or just feel like your on painkillers depending on how much you take also addiction
