Remember that Winnie the Pooh exercise song? "Up, down, touch the ground," it went. Even self-proclaimed "short and fat" Pooh can touch his toes—something seen as the ultimate sign of flexibility. But ...

Nothing is worse than soreness or discomfort in your feet after you’ve had a great night’s sleep. The rise and shine part of your day isn’t quite as pleasant anymore and staying in bed sounds ideal, ...