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Related to Biological rhythm: melatonin
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Chronobiology is the science that studies biological rhythms characterized by the recurrent, regular intervals and the cyclic physical, biochemical, and behavioral phenomena that occur in all living organisms [2, 3].
"Heart drugs are often given to patients in the morning for convenience without considering biological rhythms or time-related risks of adverse effects," said Guelph professor Tami Martino, Department of Biomedical Sciences.
Foraging worker bees are the first insects known to have a social trigger radically change their biological rhythm, report Guy Bloch and Gene Robinson of the University of Illinois at Urbana-Champaign.
A report published by ANSES has warned that even subtle exposure to light rich in blue wavelengths at night can disrupt one's biological rhythm and sleep cycle.
Sleep-deprived pilots suffer several impairments in mood and cognition, according to new research published in the scientific journal Biological Rhythm Research.
Scientists have previously supported the idea of a later start time, with research suggesting that adolescents in particular have a late-running biological rhythm.
Emerging science reveals that each of us has an optimal time to fall asleep and wake up, a personalised biological rhythm known as a "chronotype" Image Credit: NYT
These environmental influences lead to a 'phase shift' (crudely defined as change in biological rhythm), but the entrainment helps in adaptation of our biological clock to the environmental signals.
And if the circadian rhythm is interrupted and the biological rhythm is not corrected, it may lead to disease later on.
"Winter's shorter daylight can disturb the body's biological rhythm. And lower temperatures encourage people to stay indoors more such that seasonal disorders like flu can disturb sleep."
Chronopharmacology is the science dealing with the optimization of drug effects and minimization of adverse effects by timing the medications in relation to the biological rhythm. [1]

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