Confidence votes 12.5K. Human sperm cells die quickly if they dry out. As long as they remain wet, however (as they would in a vagina), they can live for 24 to 48 hours. 5 people found this useful.
Your brain on opioids. A lot of different drugs are called opioids. As we mentioned, many of them are prescription medications used for pain relief (like after you have dental surgery), but heroin is also an opioid. Opioid drugs bind to opioid receptors on cells in the brain and throughout the body.
Opioid analgesics (sometimes called narcotics) are effective for many different types of pain. Usually, they are the strongest analgesics. Opioids are chemically related to morphine, a natural substance extracted from poppies. Some opioids are extracted from other plants, and other opioids are produced in a laboratory.