Look out for the grim reaper. I saw it once already, 3 days before my Father's death.
As you age you'll know more deceased people. Not too many, but more than before.
The kinks aches and pains get worse, and it seems like that's the only thing that separates the present self from the younger self physically.
You'll never sound old. The voice doesn't seem to age.
While some people lose their minds, it doesn't happen to everyone. If we abuse drugs or alcohol, it can result in damage to our vital organs or the brain.
If you're a practitioner of sodomy, you could end up in a diaper, while other seniors drink prune juice to help them drop some fresh ones.
By the late 30's you'll find it difficult to do heavy hours, and when you do heavy hours, it feels deadly, and it can be.
You already notice It's difficult to make new friends, it's even more difficult as we age.
Most of this stuff you already knew. I do think I'm over the hill while it looks as though going uphill was less worrisome.