Light is essential for plant growth and photosynthesis. It seems that light is also essential for optimal health of animals including humans. Recent advances in lighting technology with lasers and light emitting diodes has allowed for the design of many therapeutic devices using various light intensities and colours. Light has many therapeutic effects that include SAD & depression, vitamin D production, improved circulation, pain reduction and enhanced healing of wounds. Learn what light therapy can do and how it works in the human body.

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