“Hair loss is extremely common in men,” said Dr. Marc Avram of the Weill Cornell Medical Center in New York. “About 50 percent of men will have male pattern hair loss at some point in their life.”Fortunately, there may be hope for some balding men. A new robotic system called Artas promises to make hair transplants easier and more realistic looking than ever.Doctors use the machine to transplant naturally growing hair follicles from the back of the head to the front.“It can take out these individual hair follicles, leaving them all intact, so when you place them in front, they will grow,” Avram said. “Typically when we remove hair from the back, we expect about 95 percent of what we remove to be viable and grow in the front, which is a major advance.”While small incisions are made to remove the hair follicles from the back of the head, the wounds are small and typically heal in two to four days without leaving a scar, according to Avram. However, most patients won’t experience any hair growth for almost a year.“I tell patients not to look at their hair every day. My analogy is like watching your grass grow,” Avram said.