Avoid Starvation Metabolism - Here's how

 

Starvation metabolism is a mechanism of the human body that is caused by evolution. The body has some sort of emergency mechanism in case there isn't enough food for a period of time. 

So if a person takes in fewer calories than they use up over a longer period of time, then the body switches to a kind of emergency mode in order not to waste energy and not to starve for as long as possible.

When It Gets Too Much: Recognize Overtraining

While most amateur athletes struggle with not exercising enough, there's also the other extreme: overtraining occurs when you don't give your body time to recover.

Tiny injuries are piling up, your stress hormone levels are permanently high, your performance is declining. Once you overtrain, the symptoms won't go away until you switch back and give your body - and mind - a long rest.