Learn critical information about not mixing too many drugs or taking too much of any drug. It is crucial to learn how stimulant drugs work in the body-heart rate, blood circulation, body temperature, sweating, pupils, sleep patterns, and impact on paranoia. What are the signs and symptoms of taking too much GHB? Learn why measuring GHB doses and their correlation to the “G dose” response is essential. Synthetic or natural opioid drugs-heroin, oxycontin, codeine, and fentanyl, to name a few, affect breathing and how naloxone works to counteract the adverse effects of opioids: some tips when someone is overdosing and the importance of calling 911.