Body is called our first temple and you should keep it clean inside, out and healthy, make changes as we age . That includes mental faculties too. As we age body will have different needs. Why do you want to stay healthy? You can answer that for yourself .
Not to generalize ppl but I have noticed when I find something good and tell ppl at work or my yoga friends they will go to store or will buy it on amazon right away. But some ppl will just try what I gave them but will never buy and will just make some excuses. May be they don’t want to spend money or not interested in health. Well, each to their own. Some ppl have no time, money for life giving things but have everything for nonsense.
There are things we can do as young and won’t be able to do in old age . But then old age will have things to do too. Everyone seems to be planning things to do after retirement, after this and that… but remember by that time you will be old. So what we can do now, we should just do it. Like hiking I won’t be doing that at old age but I will have stories to tell young ppl and suggestions like drink beetroot juice , Eat some protein.
Are you keeping your temple in a good shape ? Is it maintained well? It’s spring time and so start cleaning it and then rebuild .