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MALCOLM RITTER
Physical fitness may slow Alzheimer brain atrophy
- Getting a lot of exercise may help slow brain shrinkage in people with early Alzheimer's disease, a preliminary study suggests. Analysis found that participants who were more physically fit had less brain shrinkage than less-fit participants. However, they didn't do significantly better on tests for mental performance.
DNA in JonBenet case left behind in skin cells
- Crime scene DNA is typically recovered from blood or semen stains, but the DNA that exonerated members of JonBenet Ramsey's family came from invisible skin cells.