Rob Lowe feels concerned by the rising popularity of weight-loss drugs. The 59-year-old actor is well known for his committed approach to health and wellness, and Rob is slightly fearful of the recent rise of weight-loss aids, like Ozempic, a prescription drug that’s given to people with type 2 diabetes. The Hollywood star told PEOPLE: “I see people who are taking all the new weight-loss drugs and that’s great, and it’s really changed their lives. But my concern always is, okay, now what? “What’s the plan for the longevity of everything?” Rob has actually become even more self-disciplined in r…