Bethesda: Repeated heat-related dehydration has been associated with increased risk of chronic kidney damage in mice. A new study in rats published in the American Journal of Physiology—Regulatory, Integrative and Comparative Physiology reports that drinking soft drinks to rehydrate worsened dehydration and kidney injury.

London: Women are almost twice as likely to experience anxiety as men, according to a review of existing scientific literature, led by the University of Cambridge. The study also found that people from Western Europe and North America are more likely to suffer from anxiety than people from other cultures.

Washington: A new study is further burnishing copper’s reputation as an essential nutrient for human physiology. A research team led by a scientist at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) and at the University of California, Berkeley, has found that copper plays a key role in metabolizing fat.

Washington: Teenagers, particularly boys, who try to kill themselves or are close with someone who attempted suicide could face a higher rate of risk factors for heart disease in their twenties, according to research published by the American Psychological Association.

Washington: Researchers have developed an integrated, wearable system that monitors a user’s environment, heart rate and other physical attributes with the goal of predicting and preventing asthma attacks. The researchers plan to begin testing the system on a larger subject population this summer.

Washington: When new AIDS virus particles bud from an infected cell, an enzyme named protease activates to help the viruses mature and infect more cells. That’s why modern AIDS drugs control the disease by inhibiting protease.