Red light therapy is proven to increase lymphocyte activity and boost the immune system. It works both directly and indirectly, as it also helps improve circadian rhythm and deep sleep—critical factors for strengthening the immune system. I use this device every morning, sitting in front of it for 10 to 15 minutes while I do my breathing exercises and meditation. When sickness is around, I use it a couple of times a day for even more immune support. The device I use is 45% off, but the sale ends