The relativity of root vegetables

Go buy yourself a 25lb bag of potatoes. Pick it up. Carry it around. Not all the time, just various points throughout the day - feel free to drop them off at a sitter during the week, but the weekends are for you and the tubers. Strap the bag into your car and go for a drive. Give it a piggy-back. Put a silly hat on it and then lift it up above your head so it can see itself in a mirror. Now do it again (because it demands it). Occasionally add and remove potatoes to keep it within the 25-31 pound range. Do this for a year. Your muscles will adapt nicely until the weight isn't a big deal.

Now leave your potatoes with your parents and pick up two bags of carrots, weighing 5 and 6 pounds each. Carry them for four days.

Go pick up your potatoes. Your potatoes are going to feel like they've doubled in mass and seem at least twice as old.