Until recently, most prevention. funding addressed HIV in an isolated. manner, as a disease independent of. social determinants of health. Hence, a large number of programs have. been developed to focus on individual. risk behaviors.
IPL photofacial, also known as IPL photorejuvenation, is a procedure designed to stimulate and encourage healing and regeneration of the skin through the application of a broad-spectrum light. âIPL,â in fact, stands for âintense pulsed lightâ.
The UV spectrum thus has effects both beneficial and harmful to human health. Near-UV radiation is visible to some insects, mammals, and birds. Small birds have a fourth color receptor for ultraviolet rays; this gives birds true UV vision. Reindeer use near-UV radiation to see polar bears, who are poorly visible in regular light because they blend in with the snow.