A new study finds that radio waves from a cell phone can affect the metabolism of brain cells, though there is no evidence that the effect is harmful. Here, a pedestrian talks on her phone on a street in San Francisco.
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Malcom Brown (left) is hit by Jake Smith on a kickoff return during a high school state championship game in Arlington, Texas, in December. Sports medicine professionals and the NFL are calling for tougher regulations on head injuries sustained by young athletes.
Modern bedbugs are increasingly resistant to pesticides. Some populations, in fact, can survive 1,000 times the amount of pesticide that would be needed to kill a traditional bug.
Fear The Prius? A Toyota Prius hybrid model car waits for customers at a Toyota dealer in Hollywood, Calif., on March 10. Concerns about the cars suddenly accelerating dogged the company earlier this year.
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Residents of Times Beach, Mo., were forced to leave their town in December 1982 because the chemical dioxin was found in the soil. Thirty years later, the Environmental Protection Agency can't decide how dangerous the chemical is.
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Mono Lake, Calif., is home to a bacterium discovered by NASA scientists that can eat and grow on arsenic instead of phosphorous, one of the basic building blocks of life. The finding has implications for NASA's ongoing search for signs of life elsewhere in the universe.
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Eggs of the parasite called the human whipworm, responsible for Trichuriasis, a disease that affects the large intestine and causes gastrointestinal problems. Drug companies are now trying to create parasites for treating inflammatory bowel disease.
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Our brains have chemical pathways that make us feel good when we eat, and really good when we eat sweet or fatty foods with high calories. Scientists see these same chemical pathways used in cases of drug addiction.
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