BIOS SkyBlue lighting solutions deliver the health-enhancing blue-sky wavelength of the light spectrum. Recently discovered photo receptors in the human eye – photosensitive retinal ganglion cells or ipRGCs – contain the protein, melanopsin, which is highly sensitive to that blue-sky wavelength. When melanopsin is stimulated by light, the ipRGCs send a signal to the body’s master clock, telling it to reset its cycle for the next 24 hours. That signal triggers a variety of biological processes, including essential hormone production (e.g. early morning cortisol for alertness and nighttime melatonin to promote sleep). As a result, SkyBlue, with its 490 nm peak in the light spectrum, can help provide an effective stimulus during the day to promote healthy circadian rhythms. SkyBlue also peaks in the far-red wavelengths (near 660 nm) to help healthcare professionals better discern veins and visually diagnose and treat diseases through skin, such as cyanosis.