A lot of people don't realize how many elves are needed to make this happen. Most people know about the elves production department, but we have a packing department, and we have a prep crew. Santa has 4 sleighs, and while he's up in one, the packing department is packing the other sleighs. Throughout the night, we trade sleighs, so that Santa can continue his journey non-stop.
So as it turns out Santa's doctor has told him to get more active. It's true! He gets in his 10 thousand steps everyday now and he is always keeping it moving. For example, this year Santa is doing less lap-sitting and more ice skating!