People with depression feel sad for most of the day or lose interest in enjoyable activities. They also might experience changes in appetite, changes in sleep, low energy, reduced concentration, feelings of guilt, loss of hope and even thoughts of death. Although most people may experience these symptoms at some time or another, for people with depression they last for at least 14 days and the symptoms interfere with their ability to interact with people and/or their ability to work.
In very severe cases, some might even start to have unusual experiences such as hearing or seeing things that are not there, or having very unusual beliefs.
