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Et ▻http://fr.wikipedia.org/wiki/%CE%92-N-M%C3%A9thylamino-L-alanine pour une description de ce BMAA

Et la présence de ces algues bleues semble s’accroître avec l’activité humaine et l’agriculture intensive…

It’s plausible that humans have been exposed to some level of BMAA throughout their evolutionary history. The increase in algae blooms as a result of human activities is probably increasing this exposure,

There is a general consensus that harmful algal blooms are increasing worldwide thanks in part to industrialized agriculture. More people means more sewage, fertilizer, manure, which may mean more algae, which may be more exposure to this neurotoxin, leading to a possible increased incidence of neurodegenerative diseases such as Alzheimer’s, Parkinson’s, and ALS. BMAA is a strong contender as the cause of, or at least a major contributor to the cause of both endemic and sporadic ALS and Alzheimer’s disease, and possibly conferring risk for Parkinson’s diseases as well. The ramifications of this discovery are enormous.