The shocking news of an Ohio teen who died of a caffeine overdose in May highlighted the potential dangers of the normally well-tolerated and mass-consumed substance. To help prevent serious health problems that can arise from consuming too much caffeine, scientists are reporting progress toward a rapid, at-home test to detect even low levels of the stimulant in most beverages and even breast milk.
A new study from UC San Francisco is the first to show that while the impact of life's stressors...
A new study has found that turning the thermostat down a few notches at night may expand brown...
In the first broad-scale estimate of air pollution removal by trees nationwide, U.S. Forest Service scientists and collaborators calculated that trees are saving more than 850 human lives a year and preventing 670,000 incidences of acute respiratory symptoms.
A study involving nearly 27,000 older adults on five continents found that nearly 1 in 10 met criteria for pre-dementia based on a simple test that measures how fast people walk and whether they have cognitive complaints. People who tested positive for pre-dementia were twice as likely as others to develop dementia within 12 years.
Exposure to light at night, which shuts off nighttime production of the hormone melatonin, renders breast cancer completely resistant to tamoxifen, a widely used breast cancer drug. The study is the first to show that melatonin is vital to the success of tamoxifen in treating breast cancer.
A new study finds more than 75 percent of the water loss in the drought-stricken Colorado River Basin since late 2004 came from underground resources. The extent of groundwater loss may pose a greater threat to the water supply of the western United States than previously thought.
The U.S. Food and Drug Administration isn't required to hold public hearings to evaluate the health risks of widespread use of antibiotics in animal feed, a federal appeals court ruled Thursday. The decision by the 2nd U.S. Circuit Court of Appeals reversed a ruling in 2012 by a district court that sided with several health and consumer organizations that sued the FDA after the agency decided against holding the hearings.
Being unemployed increases your risk of death, but recessions decrease it. Sound paradoxical? Researchers thought so too. While previous studies of individuals have shown that employees who lose their jobs have a higher mortality rate, more comprehensive studies have shown, unexpectedly, that population mortality actually declines as unemployment rates increase.
Strengthening community forest rights is an essential strategy to reduce billions of tons of carbon emissions, making it an effective way for governments to meet climate goals, safeguard forests and protect the livelihoods of their citizens, according to a major new report.
Medicine focuses almost entirely on fighting chronic diseases in a piecemeal fashion as symptoms develop. Instead, more efforts should be directed to promoting interventions that have the potential to prevent multiple chronic diseases and extend healthy lifespans.
As local and national governments struggle to deal with ever-growing piles of electronic waste (e-waste), scientists are now refining the picture of just how much there is and where it really ends up. Nearly a quarter of e-waste that developed countries discard floods into just seven developing countries — with major potential health risks for the people who live there.
Eating probiotics regularly may modestly improve your blood pressure. Probiotics are live microorganisms (naturally occurring bacteria in the gut) thought to have beneficial effects; common sources are yogurt or dietary supplements.
In a cost-effectiveness analysis of commercial diet programs and pills, the Weight Watchers program and the drug Qsymia showed the best value for the money. The Jenny Craig regimen generated the greatest weight loss, but was also the most expensive option tested.
People with Type 2 diabetes who eat a diet high in salt face twice the risk of developing cardiovascular disease as those who consume less sodium.
Scientists have linked more than 100 spots in our DNA to the risk of developing schizophrenia, casting light on the mystery of what makes the disease tick. Such work could eventually point to new treatments, although they are many years away.
Lack of sleep, already considered a public health epidemic, can also lead to errors in memory. A study found participants deprived of a night’s sleep were more likely to flub the details of a simulated burglary they were shown in a series of images.
A scientist has developed a pioneering new way – using samples of beating heart tissue – to test the effect of drugs on the heart without using human or animal trials.
Could stuffing yourself full of high-fat foods cause you to lose your sense of smell? A new study says so, and it has researchers taking a closer look at how our diets could impact a whole range of human functions that were not traditionally considered when examining the impact of obesity.
A new study suggests parents of obese children often do not recognize the potentially serious health consequences of childhood weight gain or the importance of daily physical activity in helping their child reach a healthy weight.
Visions of chlorine-drenched chickens and the prospect of genetically modified "Frankenfood" invading dinner tables across the European Union are proving serious impediments to the signing of a sweeping free trade agreement between the U.S. and the 28-country bloc.
Many human studies have shown that long-term alcohol abuse causes brain damage and increases the risk of dementia. The new study found that in brain cells exposed to high levels of alcohol, a fish oil compound protected against inflammation and neuronal cell death.
Normally, when a crashed aircraft’s black box is recovered, it can reveal exactly what happened to cause the disaster. But, in the case of MH17, the political instability between Ukraine and Russia could hamper operations.
Two attorneys general from the Northwest have sued the companies responsible for the popular 5-Hour Energy drink. The suits allege the companies engaged in deceptive advertising and that 5-Hour Energy falsely claims customers get extra energy and focus from a unique blend of ingredients, when the boost actually comes from a concentrated dose of caffeine.
Feeding a growing human population without increasing stresses on Earth’s strained land and water resources may seem like an impossible challenge. But, according to a new report, focusing efforts to improve food systems on specific regions, crops and actions could make it possible to meet the basic needs of 3 billion more people and decrease agriculture’s environmental footprint.
Genetics could be the key to explaining nations’ levels of happiness. Economists have looked at why certain countries top the world happiness rankings. They found that, the closer a nation is to the genetic makeup of Denmark, the happier that country is.
Increasing globalization and transportation of food products across the globe means we are all increasingly at risk of catching something unwanted from our favorite foods. Now, experts have ranked the most damaging food-borne parasites according to number of cases, global distribution and health impact.
A survey of 142 men and 516 women with experience in field studies in anthropology, archaeology, geology and other scientific disciplines reveals that many of them– particularly the younger ones– suffered or witnessed sexual harassment or sexual assault while at work in the field.
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