Your mitochondria and light. The mitochondria, the energy factories of every cell in the body, have shown consistent benefit from receiving light therapy. As this article states “the absorption of photon energy by neuronal mitochondria leads to numerous downstream neuroprotective effects.” The “potent neuroprotective effects have been demonstrated in various models of retinal damage” by Red and Near Infrared wavelengths of light. The article notes applying the right light to the body is being credited for improved neuronal mitochondrial function, increased blood flow to neural tissue, more cell survival and normal restored function of the microglial cells that mediate immune responses in the central nervous system by clearing cellular debris and dead neurons from nervous tissue through the process of phagocytosis. All great reasons for that daily routine of shining with light.

https://www.ncbi.nlm.nih.gov/pubmed/28499983