Wide-ranging species may have different levels of bacterial immunity than their rarer relatives, new research suggests.

The study, conducted by Plymouth University PhD student Rebekah Cioffi and supervised by the University's Dr John Moody, Professor David Bilton and Dr Richard Billington, examined the physiological and immune properties of Deronectes diving beetles, species of which are found living across Europe.

Scientists collected samples of widespread and restricted species and then assessed temperature tolerance, metabolic flexibility and immunity.

COLUMBUS, Ohio - Electronic cigarette makers and sellers are making all kinds of health claims, many of which likely won't stand up to scrutiny under recently announced FDA regulation, a new study has found.

Regulatory oversight of those claims, announced in May, brings all tobacco products, including liquids used in vaporizers and e-cigarettes, under the same government oversight. All products must now carry warnings they contain nicotine, which is addictive.

Sales of e-cigarette products are rising about 25 percent a year.

Now that electronic devices fall under the Family Smoking Prevention and Tobacco Control Act, manufacturers will have to submit applications to the FDA, which must review and authorize health-related claims.

In one of the largest, most representative health surveys conducted to date, lesbian, gay and bisexual adults reported substantially higher rates of severe psychological distress, heavy drinking and smoking, and impaired physical health than did heterosexuals.

The National Health Interview Survey, one of the nation's leading health surveys, collected responses from approximately 68,000 adults. The results were reported today in the journal JAMA Internal Medicine by researchers at Vanderbilt University School of Medicine and University of Minnesota School of Public Health.

Exercise boosts kids' and young people's brain power and academic prowess, says a consensus statement on physical activity in schools and during leisure time, published online in the British Journal of Sports Medicine.

Time taken away from lessons for physical activity is time well spent and does not come at the cost of getting good grades, say the 24 signatories to the statement.

The Statement, which distils the best available evidence on the impact of physical activity on children and young people, was drawn up by a panel of international experts with a wide range of specialisms, from the UK, Scandinavia, and North America, in Copenhagen, Denmark, in April of this year.

European countries should not adopt Australia's immigration system, with its emphasis on deterrence, warn ethicists in a special issue of the Journal of Medical Ethics, dedicated to global medical ethics.

The system's lack of transparency is helping perpetuate ongoing human rights abuses and what amounts to the torture of asylum seekers in remote offshore detention centres, they argue.

Furthermore, the introduction of the Border Force Act, which entered the statute book in July 2015, makes speaking up about abuse by current or former 'trusted persons' including health professionals, a criminal offence, punishable by a two year prison sentence.

Solar material twists above the sun's surface in this close-up captured by NASA's Solar Dynamics Observatory on June 7-8, 2016, showcasing the turbulence caused by combative magnetic forces on the sun. This spinning cloud of solar material is part of a dark filament angling down from the upper left of the frame. Filaments are long, unstable clouds of solar material suspended above the sun's surface by magnetic forces. SDO captured this video in wavelengths of extreme ultraviolet light, which is typically invisible to our eyes, but is colorized here in red for easy viewing.