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Home » Biology Articles » Chronobiology


Chronobiology is a science that studies time-related phenomena in living organisms. Articles include topics on circadian rhythms, ultradian rhythms, infradian rhythms, tidal rhythms, etc.

Chronobiology Articles

Body's biological clock found to affect cardiac rhythm patterns in healthy adults
Statistical physics approach to analysis of heartbeat pattern uncovers link to circadian cycle

Date: 20 Jun 2007, Rating: not rated

The body's biological clock: alcohol may lead to physiological anarchy
Circadian rhythms refer to biological phenomena that oscillate within a 24-hour cycle, in keeping with the earth's rotation.

Date: 20 Jun 2007, Rating: 4.00

The science of lost sleep in teens
Studies by Brown, Lifespan scientists are at cutting edge of sleep research

Date: 20 Jun 2007, Rating: 4.13

Negative effects of caffeine are stronger on daytime sleep than on nocturnal sleep
A study has concluded that people drinking coffee to get through a night shift or a night of studying will strongly hurt their recovery sleep the next day.

Date: 20 Jun 2007, Rating: not rated

Jefferson and Brigham and Women's researchers find blue light important for setting biological clock
Researchers have found that the body's natural biological clock is more sensitive to shorter wavelength blue light than it is to the longer wavelength green light, which is needed to see.

Date: 20 Jun 2007, Rating: not rated

Health in a 24-hour society
The increasing demand of many societies for people to work outside office hours could have negative influences on health, legal, and economic outcomes

Date: 20 Jun 2007, Rating: 4.00

Siestas in space?
Brief naps may prevent the effects of chronic sleep loss experienced by astronauts during missions.

Date: 20 Jun 2007, Rating: not rated

Night eating and obesity in the EP3R-deficient mouse
EP3R–/– mice exhibit an obese phenotype with a "night" eating component that is demonstrated by increased feeding during the light cycle of the day.

Date: 23 Apr 2007, Rating: not rated, 6 pages

Chronopharmacology Focused on Biological Clock
The author introduce the regulatory system of biological rhythm from viewpoints of clock genes and the possibility of pharmacotherapy based on clock genes.

Date: 23 Apr 2007, Rating: 5.30, 12 pages

Inducible and Reversible Clock Gene Expression in Brain Using the tTA System for the Study of Circadian Behavior
CLOCK protein is an excellent indicator for the kinetics of Dox-dependent induction/repression in the brain.

Date: 23 Apr 2007, Rating: 4.56, 7 pages

Nighttime is the right time to prevent preterm labor with aspirin
Low-dose aspirin prevented preterm labor in pregnant women at risk for high blood pressure, but only if they started therapy before the 16th week of pregnancy, and only if they took it at night..

Date: 23 Apr 2007, Rating: 8.50

Lack of sleep can affect athletic performance in teens
Adolescents who don't get enough sleep might be jeopardizing their athletic performance, and high school sports teams on the west coast may be at a disadvantage if they play east coast rivals..

Date: 23 Apr 2007, Rating: 3.13

Scents will not rouse us from slumber, says new Brown University study
While sound can disrupt sleep, scents cannot.

Date: 23 Apr 2007, Rating: not rated

Overly tired teen? Sleepiness may signal serious health problem
Adolescents who are lethargic, cranky and forgetful may have a common ailment: chronic sleep deprivation.

Date: 23 Apr 2007, Rating: 3.00

Timing of women's labor may determine effectiveness of pain medication
The study found that women who had day labor got longer pain relief than women with night labor with the same amount of labor pain medicine.

Date: 23 Apr 2007, Rating: not rated

what is circadian rhythms? circadian rhythms and depression?causes? prevention?
There are some people who feel that the main thing behind depression is an upset of the body’s circadian rhythms.

Date: 23 Apr 2007, Rating: 3.73

As different as night and day
In biology, sunlight is just one distinction between night and day.

Date: 23 Apr 2007, Rating: 1.00

Defective Awakening Response to Nocturnal Hypoglycemia in Patients with Type 1 Diabetes Mellitus
Results show that awakening during hypoglycemia was associated with substantial hormonal changes, and the increases in this hormone occurred before polysomnographic signs of wakefulness.

Date: 22 Apr 2007, Rating: not rated, 8 pages

Awakening from Sleep and Hypoglycemia in Type 1 Diabetes Mellitus
Short topics about impaired counterregulation of hypoglycemia in Type 1 Diabetes Mellitus, hypoglycemia-associated autonomic failure, nocturnal hypoglycemia, awakening from sleep with hypoglycemia, etc.

Date: 22 Apr 2007, Rating: 10.00

A subset of dorsal neurons modulates circadian behavior and light responses in Drosophila
A gain-of-function mutation in the circadian pacemaker can also protect flies from the disruptive effects of constant light.

Date: 22 Apr 2007, Rating: not rated, 9 pages