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Cortisol, a "stress hormone," plays an important role in the regulation of emotion, cognition, reward, immune functioning, and energy utilization. New research has found that long-term chronic ...

PHOENIX — A new study from the journal Science found that almost half of bald eagles and golden eagles in Arizona and 37 other states suffered from chronic lead poisoning. The main way eagles consume ...

This is a preview. Log in through your library . Abstract For a number of years we have observed six patients whose illness began after inhaling high concentrations of mercury vapor in a single ...

Less than 20 years after being moved off the endangered species list, U.S. bald eagles are again facing a crisis. Now the threat comes in the form of chronic lead poisoning. The cause? Lead ammunition ...