Sandy is a patient that travels across multiple times zones (from New York to Europe) at least twice a month. When she came to see me, she was frustrated that she couldn't lose any weight. Despite her best efforts to exercise regularly and restrict simple starches and sugars, she frustratingly exclaimed, "The scale simply does not budge no matter what I do!"
The disruptions in Sandy's circadian rhythm is an extreme form of what we all just experienced with the turning forward of the clocks. Daylight saving time in the United States began at 2 a.m. on Sunday, March 12. And what seems like an innocuous one-hour shift forward in time can cause some unexpected grogginess as your body gets used to the new schedule. Temporarily, it will be darker in the morning but stay light out later. People who are particularly sensitive may find they feel more tired than normal or the opposite—wired and anxious. It's the equivalent of mild mass-induced jet lag.