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People diagnosed with depression are about twice as likely to smoke as the general population. A survey of 6811 participants from Australia, Canada, the United Kingdom, and the USA, published today in the scientific journal Addiction, found that although depressed smokers tried to quit smoking more often than other smokers, they were more likely to return to smoking within a month. This tendency seemed to be stronger for women than men.

PITTSBURGH, Feb. 17, 2016 - The University of Pittsburgh Graduate School of Public Health was among a dozen sites nationwide to participate in the first clinical trial to show that testosterone treatment for men aged 65 and older improves sexual function, walking ability and mood.

Results of The Testosterone Trials (TTrials), led by the Perelman School of Medicine at the University of Pennsylvania and funded by the National Institutes of Health (NIH), will be published in tomorrow's New England Journal of Medicine.

New Haven, Conn.-- Treatment with testosterone improves sexual function and mood in older men with low testosterone levels, report Yale researchers. The results of the Testosterone Trials (TTrials), conducted at 12 sites nationwide, including Yale School of Medicine, were the first to convincingly show the benefits of testosterone for men over age 65, said the researchers.

The study, conducted in partnership with the National Institute on Aging, was published by the New England Journal of Medicine.

CHICAGO, IL - A new study published in the New England Journal of Medicine shows testosterone treatment for men over 65 years old not only improves sexual function but also slightly improves mood and physical ability. A team of researchers from 12 medical centers across the United States, including Northwestern Memorial Hospital, participated in the study.

LOS ANGELES -- As men age, their testosterone levels decrease, but prior studies of the effects of administering testosterone to older men have been inconclusive. Now, research shows that testosterone treatment for men over 65 improves sexual function, walking ability and mood, according to a study published in the New England Journal of Medicine by a team of researchers that included lead researchers from Los Angeles Biomedical Research Institute (LA BioMed).

PHILADELPHIA -- As men age, their testosterone levels decrease, but prior studies of the effects of administering testosterone to older men have been inconclusive. Now, research shows that testosterone treatment for men over 65 improves sexual function, walking ability and mood, according to a study published in the New England Journal of Medicine by team researchers from the Perelman School of Medicine at the University of Pennsylvania, and twelve other medical centers in the United States, in partnership with the National Institute on Aging.

LOS ANGELES, Feb. 17, 2016 - Women experiencing worsening migraines while taking hormone replacement may face an increased risk of stroke, according to research presented at the American Stroke Association's International Stroke Conference 2016.

Researchers found that women who currently used hormone replacement and reported more severe migraines were 30 percent more likely to have an ischemic stroke (clot-caused), the most common type of stroke, than women who never took hormone replacement or women who did so in the past but were also coping with worsening migraines.

Want to encourage innovation? A new study co-authored by an MIT professor finds that little-known state laws called "constituency statutes" have significant effects on the quantity and quality of innovative business actions.

The statutes, which allow companies to prioritize the interests of "stakeholders" -- often employees -- rather than just shareholders, tend to allow businesses more time to bring innovations to market, rather than forcing those companies to prioritize quarterly financial results at the exclusion of new products and new activities.

A special issue of the journal Child Development reports on studies that take important new steps in understanding how genes and the environment interact in shaping child behavior.

• Discrepancy between the two ages could become early warning sign of cancer
• If your biological age is 2.2 years older than your actual age, you have a higher chance of dying from cancer
• Epigenetic age is new way to measure biological age

CHICAGO --- Epigenetic age is a new way to measure your biological age. When your biological (epigenetic) age is older than your chronological age, you are at increased risk for getting and dying of cancer, reports a new Northwestern Medicine study.

HOUSTON -- (Feb. 17, 2016) -- A study by biologists from Rice University and Oregon State University has found that significant outbreaks of marine viruses may be associated with coral bleaching events, especially as a result of multiple environmental stresses.

ROSEMONT, Ill. (Feb. 17, 2016)--Each year, hundreds of orthopaedic surgeons travel to developing countries to treat and care for patients. Yet despite the successful completion of many surgical procedures on patients who may not otherwise have access to care, adequate follow-up--so critical to optimal outcomes--is not always available or guaranteed.

Eight new whip spider species have been found in the Brazilian Amazon, almost doubling the number of known charinid whip spider species in Brazil, according to a study published Feb. 17, 2016 in the open-access journal PLOS ONE by Alessandro Ponce de Leão Giupponi and Gustavo Silva de Miranda from Fundação Oswaldo Cruz, Brazil and the Center of Macroecology, Evolution and Climate at the University of Copenhagen (Denmark), respectively.

Pollinators select orchids with stronger scents in the Swiss lowlands, than in the mountains, according to a study published Feb. 17, 2016 in the open-access journal PLOS ONE by Karin Gross at the University of Zurich, Switzerland and colleagues.

A new study uncovers a type of noncoding RNA that drives heart failure in mice as a potential therapeutic target for heart disease. Only 1.5% of the human genome encodes proteins, while the rest remains either untranscribed or converted into noncoding RNAs, molecules that do not code for proteins. These molecules remain largely uncharted territory in the human genome landscape, especially in the context of disease.