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A growing threat to health.
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Articles

REVIEWS: Red & Infrared Light Products

Let’s explore practical, topflight sources of red & infrared light — without spending hundreds or thousands of dollars. Full-spectrum light is superior to narrow-wavelength red-only light.  Red-only light products are only optimal in the evening to minimize the risk of interfering with sleep.  Even then, it’s always best to get supplemental light during the daytime. …

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