THE GOOD NEWS
-- The amount of lead in Americans' blood has dropped dramatically in the past decade and a half, says the federal Centers for Disease Control. A shocking 78% of the population had elevated lead levels in the late 1970s; by the end & of the '80s, the number was just 4.3%. The primary reason: government regulations that banned leaded gasoline and lead-based solder.
-- Students who think nothing of pulling all-nighters, take note: experiments with both rats and humans have convinced researchers that people who get plenty of sleep are better at learning things. The brain evidently uses...
To continue reading:
or
Log-In
