Colours affect the mood and emotions, and can therefore influence health. Many studies have shown that colour can have a profound effect on the function of brain waves and on the levels of circulating stress hormones such as adrenaline and Cortisol. Colour therapists use colour or coloured light to treat illness. At a simple level, green has been shown to be calming and is actually used as the main wall colour in most hospitals. Blue light is also calming and lowers blood pressure, while red light is stimulating and increases blood pressure.

The use of colour to aid healing involves the whole spectrum of colours. The therapist may diagnose the colour a person needs by noting which colours they like and dislike, by looking at their ‘aura’ to see what colour it is, and by taking a medical history. When the colours most suited to an individual have been identified and isolated, the therapist will administer the treatment in various ways. For example, you may be bathed in coloured light, or asked to eat food of a certain colour. Some therapists will advise you to change the colour of your home environment or to wear clothes of a particular colour.

It is difficult to use colour therapy as a self-help treatment without detailed advice, and a practising colour therapist or a simple book on the subject is recommended. It is certainly worth exploring as an adjunct therapy to other treatments.