Just for life in general, increase overall fitness/wellness. 20+ minutes a day of cardio (whatever you can do and prefer: walking, riding a bike, getting it on with your wife...), strength training (whatever you can do and prefer: calisthenics, weights, functional trainer, machines...), maintain a healthy bodyweight (whatever you can do: doesn't have to be shredded but try to get to a normal weight), eat healthy (whatever you can happily do: doesn't have to be food you hate all day), decrease stress (do what needs to be done but still take time to relax, don't worry about things you can't change), get enough sleep (just because you can function on 5 hours doesn't mean it's best for your body)...
I'm way off track now it seems but my point is that if you get your ducks in a row, you'll feel like a new man and everything will be easier. Slowly improve what you are doing and before you know it, difficult tasks and things that made you sore before will be like nothing.