Depression is often thought to be a reaction to life situations and events. However, quite often, it may come out of the blue, in which case it is quite often related to chemical imbalance in the brain.

It is thought that such a chemical imbalance can be triggered by a lack of natural light. This is more common in winter due to the shortened winter days. The medical term for this condition is Seasonal Affective Disorder (SAD).

To help combat SAD, it is important for you to get out and about for half an hour or more each day, even on dull days. Exercise is well known to help lift mood, so make this a regular part of your regime. Regular walks in the countryside or a park can be a wonderful antidote to winter blues.

SAD may also be worsened by dietary factors. For instance, caffeine and sugar are commonly associated with depression, and eliminating them from the diet can help lift the mood in as little as a week. I would also advise cutting out alcohol for at least a month, as this is another common factor in depression.

As far as supplements go, a preparation based on the herb hypericum (St John's Wort) may benefit. Hypericum has been found to be as effective as conventional anti-depressants in mild and moderate depression, but has far fewer side effects. The usual dose is 300 mcg (micrograms), three times a day.

For more information about self-help and support regarding SAD, contact the SAD Association on 01903 814 942.

Check out www.Channelhealth.tv for more information.