What is Red Light Therapy?


2Red Light

Many of us have had the experience of choosing different colored clothes to wear when in different moods, or having a change in mood when entering a red or orange colored room. None of us are indifferent to color, we all have our preferences. However, colors and colored light can do a lot more: they affect our state of mind and the physiological processes of our bodies, and thus our state of health.

This is beautifully illustrated by the phenomenon of the rainbow. All the colors possess unique frequencies and electromagnetic energies, and therefore different colors have different physiological effects. Therefore, the basis of color therapy includes (in addition to the reaction of the body to colors and their psychological effects) the physiological responses to the frequency and energy of colored light.

Colors of the spectrum
800–650 nm
462–400 THz
1,91–1,65 eV
640–590 nm
513–462 THz
2,12–1,91 eV
580–550 nm
522–513 THz
2,16–2,12 eV
530–490 nm
612–522 THz
2,53–2,16 eV
480–440 nm
714–612 THz
2,95–2,53 eV
430–390 nm
789–714 THz
3,26–2,95 eV

Naturally, the effects mentioned above are not solely due to light therapy, and objects or even foods can also be and indeed are part of color therapy.

Red light is the first color of the visible spectrum. The color red is close on the spectrum to the infrared waves, that is, heat waves, and therefore they have similar effect. Considered a stimulating color, red is the color of the root chakra, found at the level of the tail-bone, between the anus and the genitalia. It governs the adrenal glands, the spine, the bones, nails, and all body parts that are solid. It affects the hormonal function of the adrenal glands directly, and its assigned hormones are adrenaline and noradrenaline.

The color red increases circulation, has stimulating and invigorating effects, accelerates wound healing is beneficial in anemia, and increases adrenaline production. Due to its stimulating effects, it is very effective for underactive conditions such as poor bowel function, weak muscles, erectile dysfunction, or poor peripheral circulation, and it increases the production of red blood cells. However, it is not recommended for patients with hypertension, heart disease, or epilepsy. It is also contraindicated following surgery due to its anticoagulant effect.

There is mounting evidence that different colors of light have different effects on the body. The red light stimulates also the sympathetic nervous system, while white and blue light stimulate the parasympathetic nervous system. Earlier experiments revealed that certain colors stimulate hormone production, while other colors inhibit it. Specific colors can also have an effect on specific diseases. It was noted that symptoms of acute eruptive diseases such as smallpox and measles were relieved when patients were put in a room with red windows. Melancholia also recovered after a few hours in such rooms.


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