After reading post in this thread about SAD it made me want to do some research to see how widespread the effects of being without sunshine are on people living in the UK. Apparently nearly 35% of every adult in the UK, that stay there for long periods of time do suffer from either mild to severe forms of SAD. That bit of information can be very useful to someone trying to achieve relief from a variety of the symptoms. It's very easy for a person to suffer from some of these symptoms and not be aware that SAD is the cause and effect. Knowing this could help a person consider the possible reasons why they might be feeling a certain way. Some of the symptoms are loneliness, mood swings, insomnia, depression, irritability, weight gain, and fatigue. Those are just some of the many symptoms associated with SAD.