This week on “Take Care,” the show discusses the effects of fall time change on sleep. Dr Lois Krahn is a psychiatrist and sleep researcher at the Mayo Clinic Sleep Disorder Center in Arizona.

“With the clock change, we’re asking our body to adjust to an hour difference all at once,” says Krahn. Because of this abrupt change, Krahn calls this adjustment a fundamentally unnatural task.

“It’s very interesting, there is traffic accident data from various continents, North and South America as well as Europe, that shows that the first week after we change our clocks there is a consistent spike in motor vehicle accidents,” says Krahn.