Depression is a serious medical illness that affects how you feel, think and behave.
Everyone going through periods of feeling sad or down in the dumps at one time or another. It is usually for a particular reason. It does not interfere too much with their life, and doesn’t go on for a long period of time.
However, sometimes people suffer from more intense feelings of sadness or low mood, which can last for long periods (like weeks or even months). These feelings prevent a person from doing their normal day-to-day activities. This is what is known as depression.
Depression has a lot of features, but the most common are a deep feeling of sadness, or a loss of interest or pleasure in activities which you previously liked doing.
Some people feel irritable and may find that this leads to difficulty at home or at work.