Arsenic is nasty stuff. Concentrated doses of the chemical can be fatal — one reason it’s long been a popular poison for assassins and unhappy widows. And chronic high exposure has been linked to skin lesions, certain cancers and cardiovascular disease. But scientists are increasingly concerned about even low-dose exposures [PDF], especially for pregnant women, finding that prenatal arsenic exposure is linked to infant mortality and low-birth weight.
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Special Reports
Five Unconventional Fitness Classes to Try Now
Tired of your mindless treadmill routine and all that running leading nowhere? Consider mixing up your fitness plan, with more and more gyms offering unique classes for workouts that are effective — and fun.
