Well, we should first consider what these life events may cause upon us.
First, it would give us depression and stress, as well as mental unstability.
All of these factors lead to extreme consequences in your physical health.
Indeed, it may lead to insomnia, poor brain performance, in terms of memory and thought process, risk of heart attack ( because of high blood pressure cause by stress and even depression itself) , weight fluctuations, fatigue, a weakened immune system, blood vessels constrict and lead to cardiovascular disease, it can even cause inflammations.