What is Depression: Some New Light on the Old Blues?

Right now, 20 million Americans are in the midst of an episode of depression.
Some have the incapacitating symptoms of what doctors call a major depression. These symptoms usually require professional attention because they are very severe and demoralizing. Feeling hopeless and worthless, a person with major depression may sleep and eat irregularly.
In the throes of severe depression, it is hard to concentrate, make decisions, or find the energy to do much of anything. Thoughts of suicide are common.
Depression primarily refers to a state of mind that is purely negative, with an inclination to insufficiency and a hopeless lack of interest to do things.
If someone has a minor depression, however, the problem is more manageable. Experts say that people who have some minor depression will feel lousy about themselves and lousy about their lives, but they are managing to function at a high level.
In fact, some of the newfound ways of battling the blues are related to what you do as well as what you feel. Here are some ways that you can prepare your body to help prevent minor depression:
1. Put some spring in your step.
Regular exercise may be the most powerful natural antidepressant available. It is advisable that you take a brisk walk. Exercise helps generate the release of brain chemicals called endorphins. When endorphin levels are low, depression occurs. Exercise also oxygenates the brain, keeping it healthy.
How much should you exercise? Thirty minutes, five or six days a week, at moderate intensity, is a nice level to aim for to help prevent the brain imbalances that can make you vulnerable to depression.