Dont sleep on walking. I used to take my dog on early walks daily, and as he got older the walks got shorter until eventually they became a slow exploration of the yard. Fast forward a year, and he's still a good old boy, but I've had a noticable decline in heath and lower body mobility. I finally embraced the inevitable and started going for walks without my buddy 😥 and have noticed an immediate improvement. Neither of us are a fan of him having to stay home though.