1. Far infrared light heat prevents inflammation
Research has found that infrared heat prevents inflammation of the blood vessels by inducing a gene known as heme oxygenase-1 (HO-1)3. This gene sets off an anti-inflammatory effect within the body, helping to regulate inflammation. This process remains steady with regular exposure to infrared heat. When blood vessels are healthy, they maintain optimal function – which includes delivering oxygen and nutrients to organs and tissues throughout the body and being able to successfully remove tissue waste from the blood. We go into inflammation more in-depth in this article about Why Inflammation Happens – and How to Put a Stop to It.
The result of this process is good circulation – a key component to combatting acute inflammation in the form of muscle and joint pain or soreness. Using any of Sunlighten’s infrared saunas regularly will help your body regulate its inflammatory response.
2. Near infrared light hits layers deep in the skin
NIR is able to go past the epidermis (the top layer of skin) and permeate into the dermis, the thick, middle layer of your skin. The dermis contains tissue, hair follicles, blood vessels, lymphatic vessels, and sweat glands.
A study published in the Journal of Investigative Dermatology found that NIR can provide anti-inflammatory therapeutic effects4. It does this because as the dermis absorbs NIR, it biologically changes cutaneous component cells. This is an umbrella name for multiple cell types, including immune cells like macrophages.
Plus, research published in the Journal of Photochemistry and Photobiology found that infrared light activates Langerhans cells – tissue-resistant macrophages across the epidermis. This activation happened independent of heat exposure5, which means that if you want to seek out these benefits through infrared sauna therapy, you don’t have to do it under high temperatures if that’s not comfortable for you.
3. Near infrared activates Langerhans cells
Langerhans cells are important for your immune system and protecting against inflammaging for a few reasons. First, the location of these cells in the skin makes them the first line of defense against pathogens, helping to guard the cutaneous immune system6 from anything the skin comes in contact with. These macrophages also have the ability to migrate to a draining lymph node, which happens when the body is dealing with an infection. This migration aids in speeding up the inflammation process by regulating that inflammatory response7, helping the body recover quicker.
Last, Langerhans cells are also known as dendritic cells. This is a cell that boosts the immune response by fighting pathogens and regulating other antigens that don’t pose a threat to the body. By consistently activating Langerhans cells you’re helping your body control the inflammation process and boost immunity.
Using Sunlighten’s mPulse Smart Sauna regularly will provide this added benefit.
4. Red light therapy is also key in battling inflammation
Often, NIR and red light therapy go hand-in-hand, and for good reason. Together, this is known as photo biomodulation (PBM), and research has found it can relieve pain and reduce inflammation through several mechanisms. For example, research published in AIMS Biophysics states that PBM can change the characteristics of macrophages that may be damaged. This optimizes cells to take in and use proper amounts of calcium to provide anti-inflammatory effects throughout the body. Red light is also absorbed by mitochondria, which uses that red light for energy to repair cells around the body. Clinical studies of PBM have shown its anti-inflammatory properties help with muscle soreness, arthritis, and autoimmune diseases like psoriasis.
Sunlighten’s mPulse Smart Saunas now have 3-in-1 infrared integrated with red light therapy8.