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Does dopamine explain why slackers slack?
Don't have any motivation at work today? You may be able to blame your brain and its relationship with the chemical dopamine. The way your brain handles dopamine may predict whether you are a hard worker or a slacker, new research suggests. "If you look around at the people you ...
The 10 most annoying sounds and why they bother us
The sound of nails on a chalkboard or screams may send shivers down the spine for a good reason. A new study shows annoying sounds trigger a highly emotional response in the brain. Researchers found the part of the brain that regulates emotions, the amygdala, appears to take over the ...
Do we smell our age?
If one of your concerns about getting older is that you'll have that so-called ''old people's smell" that is the butt of jokes and bad birthday greeting cards, here's some new, reassuring research. Older people "do have a characteristic odor, but it's not a negative odor," says Johan Lundstrom, PhD, ...
Make weight loss a family affair
Want to get your overweight child to lose weight, but don't know how? Do the same thing yourself. This is the main finding from a new study of 80 overweight or obese children and their parents. When parents lost weight, their kids did, too. For each one unit decrease in ...
Stronger food smells linked to smaller bites
Is the secret to a slimmer waistline found in your nose? A new study suggests that food aromas can make a difference in the amount of food people eat. Dutch researchers found that a food's aroma intensity influenced a person's first bite as well as additional bites. Higher aroma intensities, ...
Some kinds of red wine may not trigger migraines
Many migraine sufferers find that the pleasure of a having a glass of red wine is soon followed by the pain of a headache. Now a small new study suggests that when it comes to migraines, some types of red wine may be more likely to trigger a headache than ...
Coffee and green tea may help lower stroke risk
Green tea and coffee may help lower your risk of having a stroke, especially when both are a regular part of your diet, according to new research. The study looked at the green tea and coffee drinking habits of more than 82,000 Japanese adults, ages 45 to 74, for an ...
Chinese herb kudzu may help drinkers cut down
An extract from the Chinese herb kudzu may help drinkers cut down on drinking, according to a new pilot study. "It didn't stop the drinking," says researcher David M. Penetar, PhD, assistant professor of psychology at McLean Hospital and Harvard Medical School. "They still drank, but they drank less." He ...
Fewer patients awake during operations
Being aware of what's going on during an operation under general anesthesia sounds scary. The good news is a new study suggests it happens less often than had been thought. Previous research has found that about 1 in 500 patients is aware or awake under general anaesthesia. The new report, ...
Spanking linked to long-term mental health issues
Pushing, grabbing, slapping, shoving, and other types of physical punishment may increase a child's risk for developing several types of emotional problems as he or she ages, a new study shows. This type of harsh physical punishment is different than physical and sexual abuse or neglect, but it still has ...
Grow your own replacement tooth?
Growing a replacement tooth from your own cells may be a step closer, according to new research. It is still too early for use in people, but the technique involves taking stem cells and growing more of them to produce a very small, immature tooth, similar to what a tooth ...
Our DNA may help decide how nice we are
Are nice people born that way? Partly, a new study suggests, but genes don't tell the whole story. The new research adds to the evidence linking specific genes to kindness and generosity, but these traits were also influenced by views about whether the world was a threatening or non-threatening place. ...
Cool hands may help people exercise longer
Cool hands, healthy heart? A new study shows that cool hands may allow you to exercise for longer periods of time. Obese women who placed their hands in a cooling device while exercising, such as walking on a treadmill, were able to outlast their counterparts whose held a lukewarm device. ...
Q&A: Valerie Harper's cancer
Actress Valerie Harper, best known for her role as Rhoda Morgenstern on The Mary Tyler Moore Show and Rhoda in the 1970s, has learned she has leptomeningeal carcinomatosis. The condition happens when cancer spreads to the brain and spinal cord. Now 73, Harper told People magazine she received the diagnosis ...
Gluten sensitivity: Fact or fad?
Move over fat, salt, and sugar. There’s a new dietary villain in town and its name is gluten. Scan the grocery aisles and it’s impossible to miss the proliferation of products proclaiming that they are “gluten-free.” Pick up a magazine or go online and you are likely to read about ...
Shifting temps may prime you for spring allergies
Spring allergy season is again off to an early start in many parts of the country, and doctors say there are some signs it may be even more miserable than usual this year. Last year was the fourth warmest winter on record, with consistently mild temperatures. That led to record-breaking pollen ...
Q&A: Breast cancer in young women
Young women found the news surprising and more than a little scary: Cases of advanced breast cancer have been rising in women 25 to 39 over the past three decades, researchers reported in February 2013. From 1976 to 2009, the number of cases of advanced breastcancer in younger women at ...
Lack of sleep disrupts genes
Sleeping fewer than six hours for several nights in a row affects hundreds of genes responsible for keeping us in good health, says a new study. Research led by the U.K.'s Surrey Sleep Research Centre found that people who were subjected to sleep deprivation for a week underwent changes at ...
Do vitamin supplements make sense?
For years, women have been told to take extra calcium to guard against osteoporosis. But doctors just reversed that advice. After looking at scores of studies, the U.S. Preventive Services Task Force (USPSTF) says that common doses of calcium and vitamin D don’t prevent fractures in women past menopause who ...
9 tips before getting your body pierced
Women once got their ears pierced simply to wear a wider variety of jewelry. But these days, more and more women and men are getting other parts of their bodies pierced -- from eyebrows and noses to navels, tongues, and genitals -- as a popular form of personal, cultural, or artistic expression. ...
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