Did you know that anxiety can contribute to hyperactivity? If a dog is anxious they may whimper, whine, or howl while you are away. They may even chew on your favorite shoes. It's normal for dogs to not want to be separated from their owners. It's also instinctual for them to be sad if their pack is being broken up which in some cases may only be the two of you. We also have to keep in mind that it's not natural for a dog to be shut in the house or apartment alone all day with nothing to do. Dogs don't have the many pleasures that we have to entertain themselves while at home. Therefore, they have all this energy that has nowhere to go while you are away. Then as soon as you come home all this built up energy is then projected at you.
If you ever wonder why they may have chewed on your favorite pair of shoes, it's not for revenge, it's because they have all this bottled up energy. You have to remember that dogs primary sense is smell, so when they smell your shoes they are smelling your sent which is exciting to them. Then they release that excitement by chewing on your shoes.
The best way to deal with this anxiety is right when you wake up. Go take them for a long walk or run. Something to get that energy out so they can be in more of a rested state for most of the day. If you can't do a long walk in the morning, I'd advise having someone come during the day to give them a nice long walk.
It's also wise to make sure that you are not making a big deal when you come and go from your home. If you do so, it will only reinforce anxious behavior of your dog.
And if you are anxious, that can some times rub off on your dog since they can sense your energy. So I'd advise a little meditation, yoga, or whatever works for you. A nice run or walk with your dog will also help to clear your head and energy, then both of you can come back to a more natural, restful, and peaceful state of being.