from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun An attempt to achieve to reset the circadian rhythm to achieve an earlier waking time by advancing bedtime later and later each day, around the clock, until the desired hour is reached.


Sorry, no etymologies found.


  • This new study is part of a burgeoning field of research known as chronotherapy, in which medical treatments are timed to correspond with the body's natural 24-hour circadian rhythm.

    The Globe and Mail - Home RSS feed

  • One method called "chronotherapy" has people move their sleeping and waking times three hours forward every day -- going to bed at 2 a.m., then 5 a.m., then 8 a.m. and so on until they reach a reasonable evening bedtime -- and try to settle there.

    Learning to Live

  • We hesitate to try chronotherapy because we've been afraid it would put us onto a 26-hour day, permanently cycling forever, since even the caregivers in the family have the problem.

    Well, who would have known? It's a real disorder!

  • Teens with a severely delayed sleep phase 3 to 4 hours may benefit from chronotherapy.

    Well, who would have known? It's a real disorder!

  • Asthmatics were some of the first patients to benefit from chronotherapy as it took hold in the West, first in Europe and now, increasingly, in the United States.


  • Like so many new ideas in Western medicine, chronotherapy has roots in the East.


  • GUPTA (voice-over): With few options left, Clankey (ph) tried something called chronotherapy.

    CNN Transcript Jun 22, 2006

  • COHEN: And so if you go and ask for chronotherapy in most places they're just going to tell you, you know, we don't do it here?

    CNN Transcript Jun 24, 2006

  • GUPTA: With chronotherapy, patients are quizzed about their habits, sleep patterns, diet, exercise -- all things that impact the body's internal clock.

    CNN Transcript Jun 24, 2006

  • GUPTA: With chronotherapy, chemo drugs are pumped in on a precise timetable synchronized to the body's internal rhythms.

    CNN Transcript Jun 22, 2006


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  • Treatment of a sleep disorder by changing sleeping and waking times in an attempt to reset the patient's biological clock.

    May 12, 2008

  • “Here’s my prediction for the Next Big Thing in health care: chronotherapy, or therapy by the clock. Yes, in the future, your medicines, your operations, your mealtimes and when you step onto the treadmill or the badminton court — all will be overseen by your personal chronoconsultant.”

    The New York Times, Enter the Chronotherapists, by Olivia Judson, December 22, 2009

    December 24, 2009