What kind of brain damge does speed or opiates cause?

Stroke: Due to sympathomimetic-related high blood pressure, seizures, subarachnoid and intracerebral hemorrhage, coma to name a few...(speed related...).

Multiple: Chronic opioid use has profound endocrine effcts. Opioids bind to hypothalmic opioid receptors to modulate function of the testes or ovaries. Opioids inhibit release of gnrh, supressing lh, which results in decreased testosterone secretion. In men and women, the result may be poor conc./memory, reduced libido and sexual activity, breast discomfort, loss of body hair, low bone density, depression.