Light acts on human health mainly through the “photobiological effect” of the human eye and skin absorption. Visible light entering the human eye through the human retina cone, rod cells in addition to the brain’s visual cortex imaging, but also found non-visual photoreceptor ganglion cells, the light – biological signals transmitted to the pineal gland in the human brain, affecting the human endocrine, control the human physiological rhythm, biological clock and the size of the human eye pupil, so as to have an impact on human physiology, mental health and so on. Melanin, blood, protein and water in the skin form absorption spectra for different wavelengths of light, which have different effects on human health respectively.
Light is an important factor in regulating the body’s biological clock. Since ancient times, people have followed the rule of sunrise and sunset. Different time periods, the different color temperature of light has different effects on the human body. It is proven that light is the most effective way to help people wake up, and the best duration of the wake-up curve is 30 minutes. The natural wake-up light simulates the summer morning sunlight. 30 minutes before you wake up, the light will gradually increase in brightness, and when the light hits your eyes, it will prompt the secretion of energy hormones in your body, and while you are still asleep, let your body get ready for waking up, so that you can feel the energy in your body after waking up, and ensure that your body wakes up naturally and easily in the soft changing light.