chron·o·ther·a·peu·tics 
(krŏn′ō-thĕr′ə-pytĭks, krō′nə-)
(krŏn′ō-thĕr′ə-pytĭks, krō′nə-)n. (used with sing. verb)
1. Medical treatment administered according to a schedule that corresponds to a person's daily, monthly, seasonal, or yearly biological clock, in order to maximize the health benefits and minimize adverse effects.
2. Treatment of a sleep disorder by altering an individual's sleeping and waking times and resetting his or her biological clock. In both senses also called chronotherapy.
- hold down
- hold-down
- holden
- hold end up
- holder
- holdfast
- hold feet to the fire
- hold forth
- hold horses
- holding
- holding company
- holding pattern
- hold/keep (one's) end up
- hold off
- hold on
- hold one's end up
- hold (one's) horses
- hold one's horses
- hold (one's) own
- hold one's own
- hold one's peace
- hold one's tongue
- hold out
- holdout
- hold out on