How are our bodies affected by colour?

The pituitary gland, known as the 'master gland' of the endocrine system, is first affected by coloured light. It produces substances that regulate the hormones produced by the endocrine glands. These hormones regulate our body functions, which include growth patterns, sleep, our temperature control, our sex drive, our energy levels, our metabolic rate, and appetite.

It has also been discovered that our pineal gland, located deep within our brain, is also sensitive to light. This gland is our internal body clock, producing a substance known as melatonin, which controls our sleep cycles and also inhibits sexual maturation. Daylight suppresses the production of melatonin, and at night the lack of sunlight increases its production. The quality and amount of the light reaching the pineal gland will also alter with the changing seasons.

Stimulate Normal Pineal Function 20 Hz 662 Hz




Therefore the proportions of the colours within sunlight, according to the season cause our body functions, like those of plants and animals, to mimic the energy of the seasons. In summer we are full of energy and life and very active, whilst in the winter months we feel sluggish, depressed and inactive.


Colour affects us even when our eyes are closed. Light is required for our cells to function normally, and individual colours affect them by causing changes in growth and behaviour patterns. There is a lot of research in progress at the moment into S.A.D or Seasonal Affective Disorder. You can even purchase SAD lamps that mimic the effects of sunlight on the human body. SAD is typically identified in certain individuals by their symptoms: feelings of deep depression (even feeling suicidal) but only in the autumn and winter months. This is due to the shorter daylight hours and lack of bright light. These individuals may also put on extra weight in winter and loose it in the summer months. Many SAD lamp users have found that they no longer feel depressed in winter or put on excess weight.