Scientists stitch together artificial muscles made of fishing line
Scientists have created artificial muscles by twisting and coiling high-strength polymer fishing line and thread that can be powered by electricity, chemical reactions or the absorption of light. The muscles could be used in prostheses and exoskeletons or to transmit the sense of touch to a human hand from sensors on a robotic hand. The study was published in the journal Science. HealthDay News
Polio-like syndrome has left some Calif. children paralyzed
As many as 25 children across California have been affected by a polio-like syndrome that causes acute, or sudden, flaccid paralysis. All victims have been vaccinated against polio, but their symptoms were similar to the disease. The cause of the illness remains unknown, but a virus strain called enterovirus-68 could be the culprit, said Keith Van Haren, author of a case report and a pediatric neurologist at Lucile Packard Children's Hospital. USA Today
(2/23), HealthDay News
Too much time sitting may put older people at risk of disability
For every extra hour spent sitting, the risk of disability for everyday activities among people 60 and older increases by 50%, regardless of their physical-activity level, U.S. researchers said. Data from the National Health and Nutrition Examination Survey involving more than 2,200 older people also showed that only 6.2% of them met the federal target of 2.5 hours of moderate physical activity every week. "People should find opportunities to replace some of their sitting time with light activity," study lead author Dorothy Dunlop says. USA Today
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