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PhysOrg.com™ is a leading web-based science, research and technology news service which covers a full range of topics. These include physics, earth science, medicine, nanotechnology, electronics, space, biology, chemistry, computer sciences, engineering, mathematics and other sciences and technologies. Launched in 2004, PhysOrg's readership has grown steadily to include 1.75 million scientists, researchers, and engineers every month. PhysOrg publishes approximately 100 quality articles every day, offering some of the most comprehensive coverage of sci-tech developments world-wide. Quancast 2009 includes PhysOrg in its list of the Global Top 2,000 Websites. PhysOrg community members enjoy access to many personalized features such as social networking, a personal home page set-up, RSS/XML feeds, article comments and ranking, the ability to save favourite articles, a daily newsletter, and other options.

"Lack of aerobic fitness may impair how the heart copes with the stress of running a marathon, Larose and his colleagues said. "This is not a permanent injury that will leave any type of scar," said Larose, a professor of medicine at Laval University at Quebec City."

"A new study on cellphone safety has found that carrying a phone in a shirt or pants pocket exceeds radiation exposure guidelines spelled out by the the Federal Communications Commission (FCC), and that children absorb twice as much cellphone radiation as adults. The study published in the journal Electromagnetic Biology and Medicine criticizes the way phone manufacturers measure levels of microwave radiation, and calls for the industry standard to be scrapped."

"In the few, limited tests conducted outside the United States, BPS shows estrogenic activity - not as strong as BPA, but not a good sign. BPS is now used in the United States to make PES (polyethersulfone) plastic. Some baby bottles marketed as BPA-free use PES plastic. Bisphenols are shaping up to be a dysfunctional family of chemicals. BPAF is BPA's fluorinated twin. It is used in electronic devices, optical fibers and more. New studies have found BPAF to be an even more potent endocrine disrupter than BPA. Bisphenol B and Bisphenol F are other variants used instead of BPA in various products. In the limited testing done on those chemicals in other countries, scientists found Bisphenol B to be more potent than BPA in stimulating breast cancer cells. "

"The onset of wrinkles, muscle wasting and cataracts has been delayed and even eliminated in mice, say researchers in the US. It was done by "flushing out" retired cells that had stopped dividing. They accumulate naturally with age. The scientists believe their findings could eventually "really have an impact" in the care of the elderly."

Bill Nye and the Discovery Channel give you the greatest discoveries in science. Host Bill Nye explores the most significant medical discoveries about the human body, from 1538 until the 1980s. From the first systematic examination of the human body through dissection in the 16th century to the 20th-century discoveries of how vitamins, insulin, and the antibiotics can help overcome deadly disorders and diseases; and modern-day discoveries about genetics and cancer and the causes of AIDS.

Interactive game for ABO blood typing

William Li presents a new way to think about cancer treatment: angiogenesis, targeting the blood vessels that feed a tumor. The crucial first (and best) step: Eating cancer-fighting foods that beat cancer at its own game.

"Bad" white fat became "good" brown fat, Cell Metabolism journal reports.