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In a medical science first, researchers turned skin cells from heart failure patients into heart muscle cells that may then be used to fix damaged cardiac tissue.More >> In a medical science first, researchers turned skin cells from heart failure patients into heart muscle cells that may then be used to fix damaged cardiac tissue.More >> Got hair? If you don't, you might have a higher risk of prostate cancer, a preliminary study suggests.More >> Got hair? If you don't, you might have a higher risk of prostate cancer, a preliminary study suggests.More >> Many American teenagers, including some with a normal, healthy weight, already have one or more risk factors for heart disease, researchers say.More >> Many American teenagers, including some with a normal, healthy weight, already have one or more risk factors for heart disease, researchers say.More >> Drowning kills more American children 1 to 4 years old than any cause except birth defects, according to a new federal report.More >> Drowning kills more American children 1 to 4 years old than any cause except birth defects, according to a new federal report.More >> In a new study, teens who loved listening to music blasting at high decibels on their MP3 players were also more likely than others to smoke marijuana.More >> In a new study, teens who loved listening to music blasting at high decibels on their MP3 players were also more likely than others to smoke marijuana.More >> In addition to over-the-counter and prescription medications, there are a few additional moves that can help ease the sniffles, sneezes and watery eyes of seasonal allergies.More >> In addition to over-the-counter and prescription medications, there are a few additional moves that can help ease the sniffles, sneezes and watery eyes of seasonal allergies.More >> A preliminary study links chemicals found in certain sunscreens to a higher risk of endometriosis.More >> A preliminary study links chemicals found in certain sunscreens to a higher risk of endometriosis, but it's too soon to say whether there's any reason for women to change their habits.More >> It was the small square photo clipped to an applicant's resume that most influenced whether a woman would be hired. More >> It was the small square photo clipped to an applicant's resume that most influenced whether a woman would be hired. But there was a hidden catch: The pictures showed the same six women both before and after weight-loss.More >> Children with autism given a squirt of a nasal spray containing the hormone oxytocin showed more activity in brain regions involved with processing social information.More >> Children with autism given a squirt of a nasal spray containing the hormone oxytocin showed more activity in brain regions known to be involved with processing social information, a small study found.More >> Dinosaurs may have suffered from arthritis, new research says.More >> Dinosaurs may have suffered from arthritis, new research says.More >>
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In a medical science first, researchers turned skin cells from heart failure patients into heart muscle cells that may then be used to fix damaged cardiac tissue.More >> In a medical science first, researchers turned skin cells from heart failure patients into heart muscle cells that may then be used to fix damaged cardiac tissue.More >> Got hair? If you don't, you might have a higher risk of prostate cancer, a preliminary study suggests.More >> Got hair? If you don't, you might have a higher risk of prostate cancer, a preliminary study suggests.More >> In a new study, teens who loved listening to music blasting at high decibels on their MP3 players were also more likely than others to smoke marijuana.More >> In a new study, teens who loved listening to music blasting at high decibels on their MP3 players were also more likely than others to smoke marijuana.More >> The use of oral contraceptives by younger women or hormone therapy by older women may be linked with inflammatory bowel disease, new research indicates.More >> The use of oral contraceptives by younger women or hormone therapy by older women may be linked with inflammatory bowel disease, new research indicates.More >> Men with severe gum disease, known as periodontitis, are at greater risk for impotence, according to a new study that finds young men and the elderly at particular risk.More >> Men with severe gum disease, known as periodontitis, are at greater risk for impotence, according to a new study that finds young men and the elderly at particular risk.More >> Having so-called intensivist physicians on staff in intensive care units during the night can reduce death rates in ICUs.More >> Having so-called intensivist physicians on staff in intensive care units during the night can reduce death rates in ICUs that do not have similar coverage during the day, according to a large new study.More >> Many American teenagers, including some with a normal, healthy weight, already have one or more risk factors for heart disease, researchers say.More >> Many American teenagers, including some with a normal, healthy weight, already have one or more risk factors for heart disease, researchers say.More >> Parents who smoke may put their children at greater risk for bladder irritation, according to a small new study.More >> Parents who smoke may put their children at greater risk for bladder irritation, according to a small new study.More >> Older men have an increased risk of developing melanoma, but most are careless about sun protection.More >> Older men have an increased risk of developing melanoma, but most are careless about sun protection and do not know how to properly check themselves for signs of skin cancer, a new survey reveals.More >> Women who eat a lot of "bad" saturated fat may hurt their overall brain function and memory over time, Harvard University researchers report.More >> Women who eat a lot of "bad" saturated fat may hurt their overall brain function and memory over time, Harvard University researchers report.More >>
Doctors are trying to answer the question: What came first, depression or a lack of sleep?
A study in rats shows after one week of getting four hours of sleep a day -- they had reduced function in parts of the brain that regulate mood. After a month of restricted sleep, their brains were making fewer cells.
Experts say their study proves the important role sleep plays in regulating our emotions.
-Study led by researchers at the University of Groningen in the Netherlands and presented at the American College of Neuropsychopharmacology annual meeting.
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