(CBS) - Parents listen up -- childhood injuries related to inflatable bouncers are on the rise. Bounce houses and moonwalks that are popular at parties can put children at risk for fractures, strains, and even collisions. Doctors found from 2008 to 2010, the number of injuries more than doubled - with an average of 31 children injured per day. Doctors recommend guidelines for bouncer usage - and better design to prevent injury. The study is published in the "Journal Pediatrics."
(CBS) - Staying active may slow dementia and Alzheimer's disease. Radiologists in California looked at the relationship between an active lifestyle and brain structure. They found more gray matter in the brains of older adults who stayed active. Shrinking gray matter is associated with Alzheimer's.
(CBS) - Too much -- or too little -- exercise can be bad for your knees. Researchers in California looked at cartilage changes in the knees of more than 200 middle-aged adults over a four-year period. Those who participated regularly in high-impact activities like running lost cartilage in their knees, but so did patients with very little physical activity. Doctors say activities like swimming and walking are easier on the knees.