News tagged with night
Most often, people associate circadian rhythms with the symptoms of jet lag that occur after crossing several time zones. Circadian rhythms, which get their cues from light and darkness, can change sleep-wake ...
Medical research Apr 30, 2013 | not rated yet | 0
Working night shifts might increase the risk of developing ovarian cancer, indicates research published in Occupational and Environmental Medicine.
Cancer Mar 14, 2013 | not rated yet | 0 |
Living against the clock—working late-night shifts or eating at inappropriate times, for example—can come with real health risks, metabolic syndrome, obesity, and diabetes among them. Now, researchers reporting in Current Bi ...
Medical research Feb 21, 2013 | 5 / 5 (2) | 0
Zebrafish, the staple of genetic research, may hold the answer to repairing damaged retinas and returning eye-sight to people.
Ophthalmology Jan 31, 2013 | 5 / 5 (2) | 0
For people using 30-day extended-wear/continuous-wear (EW/CW) contact lenses, replacing lenses at night doesn't lower the risk of complications compared to changing lenses monthly, suggests a study – "The Effect of Daily ...
Ophthalmology Dec 10, 2012 | not rated yet | 0
Many of the body's processes follow a natural daily rhythm or so-called circadian clock. There are certain times of the day when a person is most alert, when blood pressure is highest, and when the heart is most efficient. ...
Genetics Nov 16, 2012 | 4.5 / 5 (8) | 3 |
On the road at night or on a tennis court at dusk, the eye can be deceived. Vision is not as sharp as in the light of day, and detecting a bicyclist on the road or a careening tennis ball can be tough.
Neuroscience Oct 17, 2012 | 5 / 5 (1) | 3 |
Sleep apnoea in women has been linked to overactive bladder syndrome in a new study.
Sleep apnea Sep 03, 2012 | not rated yet | 0 |
Anyone that has ever had trouble sleeping can attest to the difficulties at work the following day. Experts recommend eight hours of sleep per night for ideal health and productivity, but what if five to six hours of sleep ...
Neuroscience Jul 27, 2012 | 5 / 5 (5) | 0
Shift work is associated with an increased risk of major vascular problems, such as heart attacks and strokes, concludes a study published on bmj.com today.
Health Jul 26, 2012 | 5 / 5 (1) | 0
Chronic exposure to dim light at night can lead to depressive symptoms in rodents -- but these negative effects can be reversed simply by returning to a standard light-dark cycle, a new study suggests.
Psychology & Psychiatry Jul 24, 2012 | 5 / 5 (5) | 0 |
Forget bad guys and gunfire: Being a police officer can be hazardous to your health in other ways.
Health Jul 18, 2012 | not rated yet | 0
Standing for long periods during pregnancy may curb the growth of the developing fetus, suggests research published online in Occupational and Environmental Medicine.
Obstetrics & gynaecology Jun 27, 2012 | not rated yet | 0 |
The drowsiness experienced by medical staff who have been on night duty can make their driving dangerous, French researchers have found. The first study to use simulated driving tests on medical staff returning home after ...
Other Jun 09, 2012 | not rated yet | 0
(HealthDay) -- Women who work the night shift more than twice a week might be increasing their risk for breast cancer, Danish researchers find.
Health May 29, 2012 | 5 / 5 (1) | 0 |
Night or nighttime is the period of time when the sun is below the horizon. This occurs after dusk. The opposite of night is day (or "daytime" to distinguish it from "day" as used for a 24-hour period). The start and end times of night vary based on factors such as season, latitude, longitude and timezone.
At any given time, one side of the planet Earth is bathed in light from the Sun (the daytime) and the other side of the Earth is in the shadow caused by the Earth blocking the light of the sun. This shadow is what we call the darkness of night.
For more information about Night, read the full article at
This text uses material from Wikipedia and is available under the GNU Free Documentation License.