So, I'm a whole lot older than you and the physical type at which no one has or ever will take a second glance...that said in my sixties I "let myself go", a combination of chronic injuries and caregiver stress. The metabolic numbers weren't good, I had a fiftieth high school reunion coming up and yes, I wanted to look good for that.

Taking better care of myself on all fronts, mental and physical got those numbers back down, surgery repaired the chronic injury to some degree, and I'm a lot happier when I look in the mirror. All win, no loss, and shaping my body to fit my mental image as a fit and muscular guy was part of loving that body. It has served me well, I have used it hard, now like an old pickup truck or hand plane it needs some work and can still be a beautiful classic;)