All of the above. Elasticity of the skin is lesser in old age, even if keeping the body in fairly good shape since younger years.. Usually noticed around the pec/delt tie in and outer pecs, butt & lower abs first.. That's just nature telling you your getting older. That flat look is probably due to a too dried out condition.Metabolism also has a hand in all this.
Props for him anyway for still trying. Guy's who tend to do the higher set thing, too much unneeded cardio and too many days a week working out, as they age, tend to get that wrinkled flat look. And even lose some muscle mass. Too bad, really.
