Are Algae Blooms Fueling Brain Disease?

A cluster of neurological disease in New England recalls an outbreak of paralysis in Guam. The culprit could be a toxin in the water. 

Elijah Stommel, a neurologist at the Dartmouth-Hitchcock Medical Center in New Hampshire, often has to deliver bad news to his patients, but there is one diagnosis he particularly dreads. Amyotrophic lateral sclerosis, or ALS, kills motor neurons in the brain and spinal cord, progressively paralyzing the body until even swallowing and breathing become impossible. The cause of ALS is unknown. Though of little solace to the afflicted, Stommel used to offer one comforting fact: ALS was rare, r...

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