Yes, I have seen some evidence that far infrared waves can improve one's health on a cellular level. Far infrared waves are electromagnetic waves that can penetrate deep into the body tissues and stimulate various biological processes. One, they can increase the production of nitric oxide, a molecule that improves blood circulation, reduces inflammation, and protects against oxidative stress. Second, they can enhance the activity of mitochondria, the organelles that produce energy for the cells, and increase the cellular metabolism and oxygen consumption. Three, they modulate the immune system, by increasing the number and function of white blood cells and natural killer cells, and by reducing the levels of pro-inflammatory cytokines. However, more research is needed to confirm the safety and efficacy of far infrared therapy, and to understand the optimal dosage and frequency of exposure.