Both. I think weights are a good idea for everyone, but especially those of us who might be at higher risk of bone loss and weakening.
For weight maintenance, there are a couple of things that I noticed. If I miss too many days of workouts or am sedentary for more than a day or two, I feel sluggish and not good, and that affects my eating in a negative way.
But if I do too many metabolic workouts, the kind that combine weights and hard intervals, HIIT type of workouts, I feel extra hungry, and eventually worn down and needing more rest days, and that affects my eating in negative way, too.
Finding the sweet spot of balance at every age is the trick.
And speaking of balance, I need to work on that more often than I did before, too.
And stretching.