Did you set your clocks ahead one hour Saturday night?  The loss on an hour's worth of sleep can be hard on some people.  Providence Doctor Ken Weizer says the shift can affect some people.  Weizer suggests resisting the urge to load up on caffeine or sugar to compensate for sleepiness; rather, let your body adjust naturally, and consider shifting your schedule by 20 minutes or so a day to ease into the time change.