What is a laser? Most of us think about the little lights we shine to make our animals go crazy. Or maybe others think of a pointer that helps guide people who are watching a presentation. Lasers have been used in the medical community for quite a few years. Many are familiar with Lasik eye surgery, which was discovered in 1974, and finally approved for the public in 1995. A growing number of people are learning about laser hair removal, and laser hair follicle stimulation (photobiomodulation) to help restore hair growth. This is part one of a three-part series about the many uses of laser, and how it has impacted our world, as well as the hair loss/restoration industry.