Life's demands can get on top of all of us. Stress is experienced by everyone whether in a high profile career or at home with a family and those attempting to juggle both.
Stress can be caused by both good and bad experiences. It is your bodies reaction to any kind of demand and can have positive as well as negative effects. For example when stress is caused by physical danger your body can react by giving you greater energy and strength.
However in negative circumstances, for instance in response to an emotional trauma when there is no outlet for this extra energy and strength.
There can be many different causes of stress from physical to emotional factors and in some circumstances a combination of both. Identifying what is causing this stress is usually the first step in learning how to deal with these responses.