Is NIR dangerous?

When NIR light emitted by LED attached to the skin is shone to the tissue, the main hazard is due to heating, which may cause burn injuries [13,14]. It is a well-known fact that the probability of cell death increases when the cell temperatures are sustained above 41°C [8].

Can infrared light penetrate skin?

Infrared light penetrates to the inner layers of the skin at about 2 to 7 centimeters deep. Hence, it reaches the muscles, nerves and even the bones. Many studies have shown that a frequency of infrared light, with wavelengths from 700 to 1,000 nanometers, is best used for healing inflammatory conditions.

What does near infrared do to the body?

It works through several important mechanisms in the body: Red and near-infrared light help promote the production of internal antioxidants by your cells, which prevents oxidative stress and damage to the muscle tissue (when light is applied before exercise).

How deep can NIR penetrate?

The results from this study demonstrated that the depth of penetration of NIR radiation into articular cartilage varies throughout the spectral range, 4000-10000 cm-1, from 0.5 mm to at least 5 mm.

Can near-infrared light penetrate the skull?

Researchers have found that high-powered NIR light can penetrate the skull to reach the brain and aid in TBI therapy. Near-infrared light has been shown to penetrate the skull to aid traumatic brain injury patients.

Does Near-Infrared damage skin?

Several studies showed that NIR may damage skin collagen content via an increase in MMP-1 activity in the same manner as is known for UVR.

What can infrared radiation penetrate?

Infrared constitutes the waveband longer than 760 nm and up to 1 mm. IR radiation can penetrate the epidermis, dermis, and subcutaneous tissue to differing extents depending on the exact wavelength range being studied. Exposure to IR is perceived as heat [2].

Does infrared penetrate skull?

The penetration of light energy into the brain is highly dependent on the wavelength. In light of this, several studies support the ability of near infrared light (808 – 820nm) to penetrate through the skull and up to 4 cm into brain tissue.

What’s the difference between near and far infrared?

Far infrared saunas use heating elements that mainly emit light in the far-infrared range. Near infrared lamp saunas combine heat therapy and light therapy. The light from near-infrared saunas can penetrate the body up to 9 inches, according to NASA. Additionally, NIR saunas generally emit very low levels of EMFs.

Does infrared penetrate bone?

Near infrared light measurably penetrates soft tissue, bone, and brain parenchyma in a formalin preserved cadaver specimen, and also penetrates the full thickness of human cheek in vivo.

Can near infrared light penetrate the skull?