A thorough evaluation can also rule out other things that can cause memory loss besides Alzheimer's -- for example, medication side effects, depression, pregnancy, and stress. Advertisement Sign #1: Your memory problems frighten you.
Some of the short-term effects of opiates to your body include: absence of pain, euphoria, sense of emotional detachment, loss of appetite, reduced sex drive, sleepiness, mood swings, nausea and vomiting.
What's happening inside the body is the heroin is turning into morphine. Morphine has a chemical structure similar to endorphins -- the chemicals your brain makes when you feel stressed out or are in pain. Endorphins inhibit your neurons from firing, so they halt pain and create a good feeling.