As soon as users come down, they want another fix. The desire for another fix becomes stronger the more heroin they do. They end up hurting the people around them and isolating themselves. Check out our list of reasons people would try drugs. Because people who are high on heroin, or craving the next fix, don't use good judgment, they often share needles with other users.
Users never know how pure their drug is, so every dose is different.
Other signs of an overdose include difficulty breathing, clammy skin, tiny pupils and convulsions. People who are addicted to heroin face serious problems when they quit using. Addicts can't sleep, and their body temperatures and blood pressure rise. And by that time, most of them have alienated themselves from everyone, so they're alone. Check out this site .