Exercising too much can cause

 Too much exercise can lead to injuries, exhaustion, depression, and suicide. It can also cause lasting physical harm. Your adrenal gland, pumping out hormones as you pound the pavement, can only produce so much cortisol at a time

It can lead to injuries and physical harm

Well, both latitude and intensity of light affect temperature because, the higher the light intensity, the higher the temperature and since latitude is the measure of how close you are to the equator, then the closer to the equator you are, the higher the temperature is.