I'm also aging, and finding some things harder to do, and that many take longer. My family also advises strongly against some activities. I don't hunt alone, don't run equipment alone, always check in with someone if I'm doing anything that might be risky. Recently, I've been having knee issues and had to resort--for a short time--to using a can for any rough-ground travel, and have been wearing a knee brace for several months. It isn't easy getting old. Staying active is certainly helpful to all things.