In Matters Of Health

Climate change creates longer ragweed season

A changing climate means allergy-causing ragweed pollen has a longer season that extends further north than it did just 16 years ago, U.S. scientists reported on Monday.

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Gastric bypass more effective than other procedures, studies find

Less than a week after the Food and Drug Administration approved the marketing of Lap-Band weight-loss surgery to 11 million new patients, a pair of studies has found that a different, older procedure is more effective and no riskier than either the Lap-Band or another less-drastic surgery, sleeve gastrectomy.

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