Tag Health & medicine
Finding challenges accepted view of MS: Unexpectedly, damaged nerve fibers survive
Multiple sclerosis, a brain disease that affects over 400,000 Americans, causes movement difficulties and many neurologic symptoms. MS has two key elements: The nerves that direct muscular movement lose their electrical insulation (the myelin sheath) and cannot transmit signals as effectively. And many of the long nerve fibers, called axons, degenerate.
UW team studies the mechanics of stronger bones
As human bones age, they undergo geometric changes and also lose minerals such as calcium that give them density and strength.