I'm 30, but my body feels much much older just due to life circumstances and health history. Not going to lie, it's hard hiking buttes out west. Have to stop and take several breaks. However, that's been normal for me, and if I'm hunting alone I can pace myself and work it towards my advantage. I think Dan (Wyohunter) used to have a signature line that read, "the older I get, the slower I hunt. The slower I hunt, the better I hunt. The better I hunt, the more I owe my taxidermist..." ? I find that to be more true than not.