The Effects of Heroin on the Brain

The more exposed you are to heroin, the higher your tolerance. This is with a lot of drugs. You become really tolerant to the drugs. So normally what a heroin addict could take after years of abuse would kill the everyday person who has never taken heroin before. But because of these physiological effects on the brain, withdrawals are then experienced when there's an absence of heroin or any opioid that you're taking. And so withdrawal symptoms can be sweating, profusely, feeling extremely sick, tremors, having really bad thoughts or nightmares,. It's just an awful experience emotionally and physically. Most people go back on the drug because they cannot handle how intense these withdrawals are.