A deep, golden tan might make us feel healthier, but at best it ages us and at worst, increases our high risk skin cancer. So is there any way to get a safe tan? Helen Garston reports. Time was when the benchmark of a successful holiday was how dark our tan was when we returned home. Then, just as smoking became linked to lung cancer, sun exposure was found to cause skin cancer. According to Cancer Research UK, just a short burst of sunburn in early adulthood could have repercussions years later. The rich and famous aren’t immune either: Hollywood star…