Matt says far infrared "isn't necessarily beneficial or useful for cells"Let's look at the FTIR absorption spectra of human tissueAdipose tissue: peaks at 3000 nmHeart muscle: peaks at 3000 nmCoronary artery: peaks at 3000 nmArtery vessel: peaks at 3000 nmThat's not a coincidence.Your tissue is 70% water.Sun delivers ~2 mW/cm² above 3000nm at Earth's surface60W incandescent at arm's length deliver ~0.5 mW/cm² in that windowLumios?ZERO