Mental Health

Not coping with stress may increase teeth-grinding

People who are stressed are more likely to grind their teeth in their sleep—clenching, and working their jaws throughout the night, slowly wearing teeth smooth or even chipping them, and awakening with headaches and muscle tension. Yet, according to new research published last week in the journal, it’s not solely feeling stressed, but

Generosity Can Be Contagious

One person’s initial generosity can spark a chain reaction of benevolence, according to the latest study from prolific social contagion researchers James Fowler and Nicholas Christakis.

Migraine treatment with a magnetic pulse

Administering a small magnetic pulse to the back of the head may be an effective, and drug-free, method for combating migraine pain, according to new research published online this week, and in the April issue of the journal Lancet Neurology. Previous research has suggested that this single-pulse transcranial magnetic stimulation (sTMS)

Too little sleep linked to increased belly fat

Sleeping too much or too little is associated with a higher prevalence of belly fat, according to a new study published this week in the journal SLEEP. The analysis of more than 1,000 blacks and Hispanics between the ages of 18 and 81 found that, in participants ages 40 and younger, sleeping fewer than five hours per night or more than

Potential Alzheimer’s drug fails clinical trial

A drug that held hope for many Alzheimer’s patients and their loved ones failed a late-stage clinical trial, proving negligible benefits over placebo, the New York Times reports. The drug, called Dimebon (latrepirdine), was being developed by pharmaceutical giant Pfizer together with a small new company, Medivation, but failed to meet

It’s electric! Harvesting energy from body movement?

As my colleague Bryan Walsh reported back in 2008, wind farms and solar panels aren’t the only places that scientists have been looking for some extra electricity. From knee braces that tap into the energy in a person’s stride to vibration harvesters that soak up energy from the buzz of a busy highway, researchers are hard at work coming

Anthropomorphism: why people dress up their pets

People like attributing human characteristics to non-human beings and things. We’ve been doing it since we first started depicting gods in our own image. In a new study, published in the journal Current Directions in Psychological Science, psychologists Adam Waytz from Harvard University and Nicholas Epley and John T. Cacioppo from the

A way to keep brain tumors from coming back?

Glioblastoma brain tumors are notoriously difficult to fight: though they can be battled back with radiation and chemotherapy, within time they eventually manage to grow again. Yet, according to initial results of a study in mice, a technique that effectively starves the tumor of the blood supply it needs to regrow could eventually offer

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