Recently I've been taking him for daily walks that are usually 1 to 1.5 miles long.I didn't start this earlier, since I read that I shouldn't do so when they are less than a year old or so.We don't have behavior issues,I just want to make sure he stays fit and healthy, not to mention he loves his walks. But I can't seem to find a good answer. Everything I've found just says alot of exercise or a daily walk, not how long.