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May 5, 2014 09:45 AM ET // Amanda Onion
An unusual (and creepy) experiment reveals that the blood of young mice can revitalize mental capacities in older mice.
Feb 24, 2014 09:00 AM ET // AFP
The California children tested negative for polio, and all had been vaccinated.
Oct 28, 2013 09:00 AM ET // Sheila M. Eldred
A third of Americans say they’re less likely to let their boys play football because of head injury risks. But helmets alone won’t solve the concussion problem.