July 25, 2012 |
TV sets, laptops, iPads and iPhones are modern society's instruments for increased productivity, social connectedness and entertainment after a long day's work. Ironically, a new study published in Molecular Psychiatry shows that these devices also contribute to an increase of major depressive disorder. The 24-hour society made possible by the advent of the electric light bulb has come at a significant biological cost. Light at night disrupts the body's natural circadian rhythms and has been linked to breast cancer, heart disease and obesity.
August 1, 1986 |
The human circadian rhythm, a tyrant that dominates human existence, may be reset far more easily than previously believed, according to a new study in today's issue of Science magazine. The study comes at a time of increasing research into the mysterious, periodic cycles that govern life, and such studies are yielding new knowledge that is of potential benefit to millions of people who work non-traditional hours.
May 8, 2013 |
The links between sleep and cancer are now so many, you could build a chain. A new study has found that for men who suffer insomnia and unwelcome wakefulness, the risk of prostate cancer is greater than for those whose sleep is undisrupted. That research expands on a growing body of evidence that men and women whose sleep is short, broken or of poor quality are at higher risk of developing a wide range of cancers. Research has long linked overnight shift work -- and the circadian rhythm disruptions that are common with it -- as a risk factor for breast cancer and endometrial cancers in women.
March 31, 2008 |
Spring fever, that reputed and seemingly infectious malady that strikes when the days lengthen and temperatures begin to climb, has been blamed for feverish bouts of house-cleaning, restless behavior in the classroom, distraction in meetings and love struck dazes. Some scientists think spring fever is more than just a colloquialism -- they think it's a constellation of symptoms brought about by hormonal changes in the body.
May 12, 2003 |
When the occasional night spent walking the floor with a crying baby or rocking a toddler becomes a common occurrence, pediatricians often advise a little pharmaceutical help. A survey of 671 mostly suburban pediatricians showed that 75% had recommended sleeping medication for a child within the last six months. But few studies have examined the effectiveness of sleeping medicines in children, and no medication has been approved for them by the Food and Drug Administration.
October 25, 1999
For some people who suffer from insomnia, traditional treatments such as behavior therapy and prescription drugs produce undesirable side effects or don't work. This makes folk remedies and alternative health treatments for insomnia very popular. But do they work? Here is what some experts say: Warm milk: Milk contains the amino acid tryptophan, which is touted to alleviate stress and produce serotonin, a brain chemical that helps control sleep.
February 17, 2010 |
Riding in school buses in the early morning, then sitting in poorly lighted classrooms are the main reasons students have trouble getting to sleep at night, according to new research. Teenagers, like everyone else, need bright lights in the morning, particularly in the blue wavelengths, to synchronize their inner, circadian rhythms with nature's cycles of day and night. If they are deprived of blue light during the morning, they go to sleep an average of six minutes later each night, until their bodies are completely out of sync with the school day, researchers from Rensselaer Polytechnic Institute reported Tuesday in the journal Neuroendocrinology Letters.
October 1, 2007 |
Spicy or greasy foods, onions, chocolate -- all can take a painful, post-meal toll in the form of heartburn or acid indigestion. When these problems occur often, as they do for millions of Americans, they become known as gastroesophageal reflux disease, or GERD. Whether the discomfort is occasional or chronic, choosing food and drink more carefully can ease the symptoms. So too, perhaps, can a supplement most commonly associated with sleep. At the root of the problem is a bit of faulty plumbing.
December 15, 2010 |
If you’re feeling just a little depressed and lethargic this time of year, go ahead and blame the universe – specifically the sun. The cause may be seasonal affective disorder, which ties the blahs to waning winter sunlight. SAD, as it's called, usually affects people who live in northern states where days are short and darker during winter months. This HealthKey article lists symptoms as: "… Oversleeping, daytime fatigue, carbohydrate craving and weight gain as signs of SAD, as well as symptoms of generalized depression, such as decreased sexual interest, lethargy, hopelessness, suicidal thoughts and loss of interest in your normal activities.