ADHD caused by Pesticides?

Causes of Attentiondeficiency hyperactivity disorder may lie in exposure of mothers to organophosphate (OP) pesticides during pregnancy according to a new study published in Environmental Health Perspectives.
OP pesticides targets insects by affecting their nervous systems – they affect the activity of neurotransmitters. Neurotransmitters are chemicals that are released from nerve (brain) cells which thereby transmit an impulse from one nerve cell to another nerve cell, muscle, organ or other tissue – they are messengers of neurologic information that passes from one cell to another.

OP pesticides affect the activity of acetylcholine, a type of neurotransmitter which is vital in brain development and is involved in attention and short-term memory.
On a related note, do we know what ADHD is? Seems like there is a lot of misdiagnosis and unnecessary(damaging) medication. ADHD could be misdiagnosed in nearly 1 million kids

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