I'm in my 40s and I'm really glad I got into martial arts back in my 20s and kept up with it.

Walk a lot with the dog, also stretch!!!! Before doing any big exercise. It would have been better to stretch when you were younger but it still helps. Also just exercise and eat healthy

I run 3 times a week, do yoga most days, walk to and from work, go to raves at the weekend. Getting close to 40 and feeling good still! I don't think we are old enough to be struggling in our bodies yet.

Have kids. Try to be a good dad not just a father.

You will stay very active...

They keep me so tired.

Time to start paying attention to the protein content of your meals. Joint issues are often postural tho

Quite s bit older than you and I:

• Hike and/or backpack, anywhere from 3-12 miles and up to 5k ft elevation depending on the weekend (and weather, icy mountains are slow going)
• Gravel biking, or on the trainer with Zwift
• Running, though I don't particularly like it, so not much
• And days I just want to move around, archery

You are not old at 30, your body is just out of practice and your mind lacks motivation. Both can be tough to overcome.

If things are hurting, I highly recommend cycling of some form, as it's way less impact. Or hiking with poles, helps a ton. Just take it slow to start.