When I was still a student, my daily exercise was walking from home to school and vice versa. However, now that I am working in graveyard shifts, I barely find time to have at least 15-30 min walk. I also have a hard time to do small exercise at home, more so to go to the gym. As an alternative to exercise, I see to it that I eat healthy food and take in vitamins everyday to ensure my health is still up and good.

I like an exercise that doesn't look like an exercise at all. I mean, an exercise that is not obvious, like an outdoor/recreational activity. You'll have fun doing it and as an effect, your physique gets healthier and better.     

Me too. I've always wanted to try yoga but can't find the time to do so. Someday, if I can find the time I would want to do it. Is it possible to just do it myself at home? How? Once I started it, what will happen if I don't do it regularly? 

It's the first time I heard about a dog not sleeping the entire evening. That's rare. I just can imagine how worried you are. However, that's cool because your dog can guard you thru the night. But I agree, it's best to consult a veterenarian so that you'll know the reasons and understand why your dog's acting that way and also to attend the needs of your dog so it'll be able to sleep and rest properly.