1, improve joint pain: Far infrared rays can penetrate into muscle joints, make the body warm, relax muscles, drive the exchange of oxygen and nutrients in the microvascular network, and eliminate the accumulated fatigue substances and aging wastes such as lactic acid, which has excellent effects on eliminating swelling and relieving pain.

2、 ? Regulating autonomic nerve: autonomic nerve mainly regulates visceral function. People are in a state of anxiety for a long time, and the autonomic nervous system is constantly tense, which will lead to decreased immunity, headache, dizziness, insomnia and fatigue, and cold limbs. Far infrared rays can regulate autonomic nerves and keep them in the best condition, and all the above symptoms can be improved or eliminated.

What harm does infrared ray do to human body?

1、 ? The effects of infrared radiation on the body are mainly skin and eyes. When infrared rays irradiate the skin, most of them can be absorbed and only about 1.4% is reflected. After a short period of high-intensity irradiation, the local temperature of the skin increased, the blood vessels dilated, and erythema appeared, and the erythema disappeared after stopping irradiation. Repeated irradiation can cause local pigmentation. After excessive irradiation, especially near infrared rays (short-wave infrared rays), in addition to acute skin burns, it can also penetrate into subcutaneous tissues, adding blood and deep tissues.

2. Long-term exposure to low-energy infrared rays will lead to chronic eye damage, usually chronic congestive blepharitis. Short-wave infrared rays can be absorbed by the cornea, causing thermal damage to the cornea, and can damage the iris through the cornea, while cataracts are more common in workers with long service life.

Solar rays can be roughly divided into visible light and invisible light. Visible light will refract purple, blue, cyan, green, yellow, orange and red light (spectrum) after passing through the prism. Light other than red light, whose wavelength in the spectrum is 0.75 ~ 1000 micron, is called infrared light, also known as infrared light. Infrared ray belongs to the category of electromagnetic wave, which is a kind of electromagnetic wave with strong thermal effect.

Infrared has a wide wavelength range. People divide infrared rays with different wavelength ranges into three regions: near infrared, middle infrared and far infrared, and electromagnetic waves with corresponding wavelengths are called near infrared, middle infrared and far infrared. Infrared ray is a kind of light wave whose wavelength is shorter than radio wave and longer than visible light. Infrared rays are invisible to the naked eye, and everything emits infrared rays. The infrared radiation of hot objects is stronger than that of cold objects.

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Advantages and disadvantages of far infrared health care network