The effects of different colors of light on the human body

Colors in different spectrums have different effects on the skin. Here are some common spectrum colors and their possible effects on skin:

 Ultraviolet (UV): Ultraviolet rays are divided into UVA, UVB and UVC.  UVA has a longer wavelength and can pass through glass, and is mainly responsible for skin aging and wrinkle formation.  UVB has a shorter wavelength and can cause sunburn and solar dermatitis. It is also one of the main factors in causing skin cancer.  UVC has the shortest wavelength, is usually absorbed by the earth's atmosphere, and has little impact on the human body.

Blue light: Blue light is located in the higher frequency band of the visible spectrum. In recent years, due to the popularity of electronic devices, people's exposure to blue light has increased. Prolonged exposure to blue light may cause skin inflammation, damage epidermal cells, and accelerate skin aging. In addition, blue light may also interfere with sleep and affect skin recovery and regeneration.

 Red light: Red light has a longer wavelength and can penetrate deeper into the skin. Red light is thought to promote blood circulation, increase collagen production and cell regeneration, helping to improve skin quality and reduce wrinkles.

 Green light: Green light is located in the mid-wavelength range of the visible spectrum and has relatively little impact on the skin. However, green light is used to treat certain skin problems, such as redness and pigmentation. It may help reduce inflammation and promote skin soothing and repair.

 Yellow light: Yellow light is also part of visible light and has a longer wavelength. Yellow light has relatively little effect on the skin, but is used in beauty treatments to brighten skin tone and reduce wrinkles and inflammation.

 It is worth noting that the effects of different colors in the spectrum on the skin are also closely related to factors such as light intensity, exposure time and individual differences. In addition, overexposure to UV rays can cause skin damage and health problems, so it is recommended to take appropriate protective measures, such as using sunscreen, wearing hats and sunglasses, to reduce the effects of UV rays.