Children with attention deficit hyperactivity disorder have several brain regions that are slightly smaller than usual, more evidence that the disorder should be considered a neurological condition, a new study says. The study, the largest review of ADHD patients’ brain scans ever conducted, might also provide clues for developing new …

Educating the world’s religious leaders could encourage millions more men to undergo circumcision and reduce the rate of new HIV infections, according to research printed in the Lancet medical journal. Circumcision can lower a man’s risk of getting HIV by up to 60 percent, according to the World Health Organization …

Republicans took their first step toward repealing and replacing the Affordable Care Act — more commonly known as Obamacare. The health insurance program was criticized as too expensive with too much regulations. Although Republicans say their replacement plans will be more affordable and easier to use, many Americans are worried …

An Indian rocket blasted off Wednesday morning from Sriharikota in eastern India putting a record 104 satellites into space in a single launch, surpassing Russia’s previous feat of launching 37 satellites one year ago, according to India’s space agency. The launch also marked a milestone in the country’s efforts to …

An environmental group sued U.S. President Donald Trump’s administration on Tuesday for delaying a rule that would designate the rusty patched bumble bee as an endangered species. The U.S. Fish and Wildlife Service, a branch of the Interior Department, in September proposed bringing the bee under federal safeguards. The rule …

Southern Africa is beginning to come to grips with an invasive species that is wreaking havoc with its corn crops. It’s a South American insect called a fall armyworm and in Zambia alone, it may be on the way to destroying about 40 percent of that nation’s maize harvest. VOA’s …

An extraordinary fossil unearthed in southwestern China shows a pregnant long-necked marine reptile that lived millions of years before the dinosaurs with its developing embryo, indicating this creature gave birth to live babies rather than laying eggs. Scientists on Tuesday said the fossil of the unusual fish-eating reptile called Dinocephalosaurus, …

A new study concludes that a tiny minority of so-called “superspreaders” was likely responsible for the lethal Ebola epidemic in West Africa.   Researchers at Princeton University in New Jersey and Oregon State University found that 3 percent of infectious individuals with Ebola were the source for more than 61 …

The tragic story of the hundreds of dead whales stranded on a New Zealand beach has taken an even more grisly turn as officials say they fear some of the carcasses could fill with gas and explode as they decompose. On Tuesday, clearing of the nearly 700 pilot whales was …

Although not ready yet, powerful gene editing tools may one day be used on human embryos, eggs and sperm to remove genes that cause inherited diseases, according to a report by U.S. scientists and ethicists released on Tuesday. The report from the National Academy of Sciences (NAS) and the National …

Researchers say they may have found a way to stave off aging. They say you might need to eat less. Writing in the journal Molecular & Cellular Proteomics, researchers from Brigham Young University say eating less can slow the aging of cells in the body. Fewer calories slow down a …

The U.N. Food and Agriculture Organization (FAO) is holding an emergency regional meeting in Zimbabwe on the spread of army worms in southern Africa, which is already struggling with food shortages. The pests are destroying crops in Malawi, Zimbabwe and Zambia. FAO coordinator for southern Africa Chimimba David Phiri said …

Just in time for Valentine’s Day, researchers discover a hormone that can enhance activity in the brain associated with sexual arousal and romantic love. Faith Lapidus reports. …

No place is safe from pollution, including the deepest parts of the oceans. Writing in the journal Nature Ecology & Evolution, researchers from Newcastle University in the United Kingdom say small creatures called amphipods that live in the Mariana and Kermadec trenches, both of which are more than 10 kilometers …

Several Chinese cities have shut down their poultry markets in the wake of a bird flu outbreak that has killed at least two dozen people this year across China. Live poultry sales have now been suspended in Changsha, the capital of central China’s Hunan province, as well as markets across …

A 36-year-old Egyptian woman, believed to be the world’s heaviest woman at 500 kilograms, has been brought to an Indian hospital to undergo surgical procedures aimed at drastically reducing her weight and giving her a chance of a normal life. For Eman Ahmed, the journey to Mumbai was her first …

Anti-abortion activists and supporters of a woman’s right to choose staged demonstrations in dozens of U.S. cities Saturday, with the nonprofit group Planned Parenthood at the center of the discussion. Anti-abortion activists organized rallies in more than 200 locations Saturday, according to one of the national organizers, Monica Miller of …

Researchers in Poland are using off-the-shelf technology to create a mini-satellite they plan to offer to scientists, companies and even individuals, for gathering useful data from space. The spacecraft, named after the ancient Slavic god of war, fertility and abundance, is meant to make space exploration available to ordinary people. …

Residents say the world’s first atomic bomb test caused generations of southern New Mexico families to suffer from cancer and economic hardship, according to surveys gathered by an advocacy group seeking compensation for descendants. The surveys released Friday detailed residents’ stories from areas around the 1945 Trinity Test and argue …

The moon, formed when a rock the size of Mars hit the Earth, was thought to be 4.3 billion years old. It’s actually older, say scientists at University of California, Los Angeles, who studied moon rocks retrieved by U.S. astronauts. It’s at least 4.51 billion years old, they say, which …

The U.S. Senate voted 52-47 to approve Republican Representative Tom Price as the new chief of the massive Health and Human Services Department. The vote came early Friday morning at the end of a session that ran well past midnight. Price, a veteran House member from the state of Georgia …

Every two or three months there seems to be a mass killing somewhere. If it seems that these incidents are now more frequent, it’s because they are. A mass shooting, where at least three or four people are killed, happens about every 64 days in the U.S. The Federal Bureau …

The Trump administration on Thursday delayed what would be the first endangered designation for a bee species in the continental U.S., one day before it was to take effect. The U.S. Fish and Wildlife Service adopted a rule Jan. 11 extending federal protection to the rusty patched bumblebee, one of …

Forget the chocolates, roses and jewelry. This Valentine’s Day (Feb. 14), perhaps the best gift we can give our significant other is our undivided attention. Unfortunately for many, it’s easier said than done. A recent international survey of more than 13,000 adults found that in the company of their partner, …

VOA has an update on that giant crack in an Antarctic ice shelf scientists say is now sprinting towards its almost certain break from the continent. The crack is in part of the Larsen C Ice Shelf, which floats off the coast of northwestern Antarctica. Growing, growing, gone! Martin O’Leary …