[ad_1] While more people than ever are running marathons in the U.S., the risk of dying from a heart attack during a run has fallen dramatically in recent years. That’s a key conclusion from a new study by Jonathan Kim, associate professor in the Emory School of Medicine. Kim’s research is a follow-up to a…
[ad_1] As anyone seeking to lose weight knows, diets come in and out of fashion. The Sexy Pineapple diet, launched by a Danish psychologist in 1970, never really took off. Kellogg’s no longer promotes the Special K diet, which swaps out two meals a day for a bowl of the breakfast cereal of that name….
[ad_1] A steel factory in Hebei, China, in 2015 Kevin Frayer/Getty Images A recent surge in the rate of global warming has been largely driven by China’s efforts to reduce air pollution, raising questions about how air quality regulations are influencing the climate and whether we fully understand the impact of removing aerosols from the…
[ad_1] In January 2025, the World Health Organization (WHO) released new guidelines recommending a switch from typical table salt to alternatives containing less sodium, aiming to reduce worldwide sodium intake by 30 percent in the next five years. One of the leading causes of death globally is cardiovascular disease — and often, eating too much…
[ad_1] Partial solar eclipse sequence over Stonehenge, U.K. (Image credit: Josh Dury) On March 29, a partial solar eclipse was visible over eastern North America and Europe, putting on a dramatic show for those lucky enough to have clear skies and front-row seats. Astrophotographer Josh Dury captured the event unfolding over the iconic astronomical monument…
[ad_1] NASA’s Curiosity Mars rover has detected the largest organic (carbon-containing) molecules ever found on the red planet. The discovery is one of the most significant findings in the search for evidence of past life on Mars. This is because, on Earth at least, relatively complex, long-chain carbon molecules are involved in biology. These molecules…
[ad_1] The thigh and shin bones of Paranthropus robustus Jason L. Heaton A fossilised left leg unearthed in South Africa belongs to one of the smallest adult hominins ever discovered – smaller even than the so-called “hobbit”, Homo floresiensis. The diminutive hominin was a member of the species Paranthropus robustus. This was one of several…
[ad_1] SpaceX plans to launch the Fram2 astronaut mission over Earth’s poles tonight (March 31), and you can watch the action live. Fram2’s Falcon 9 rocket and Crew Dragon capsule are scheduled to lift off from Launch Complex 39A at NASA’s Kennedy Space Center in Florida tonight at 9:46 p.m. EDT (0146 GMT on April…
[ad_1] Shark Sounds, Molecules on Mars and Continued Federal Cuts Cuts to federal health and science agencies continue. Plus, we discuss the sounds of sharks, the meaning of Martian molecules and one big dino claw. By Rachel Feltman, Fonda Mwangi & Alex Sugiura Anaissa Ruiz Tejada/Scientific American Rachel Feltman: Happy Monday, listeners! For Scientific American’s…
[ad_1] Cosmic rays may offer an out-of-this-world answer to a long-standing mystery about lightning on Earth, a new study suggests. Thunderstorms are exceedingly common; a staggering 3 million lightning strikes occur on Earth every day, according to the U.K. Met Office. But even though lightning is ubiquitous, scientists still don’t fully understand what triggers it….