When heroin is ingested by a user, it creates an almost immediate rush that makes the drug so addictive. As soon as the drug enters the blood stream of the user, the brain interprets it as morphine and binds it to opioids receptors that are located inside of the brain.
Besides the long term effects of heroin, there are short term effects as well. Examples of these short term effects of heroin include skin flushing, the sensation of heavy limbs, and dry mouth. In some cases, vomiting and nausea can also result. After the high period has subsided, the user will then feel drowsiness after several hours. During this drowsiness period, many of the body’s functions will drastically slow down. When too much heroin is ingested, in the case of an overdose, breathing will slow down as well, and if it goes too far, death will result.
This is an explanation for why people can die from heroin overdoses. Heroin addiction is definitely a disease because it can cause significantly chemical changes within the brain and creates a longing for only more of it also this can cause hair loss problems. Eventually, it can get to the point where the user is physically dependent on heroin, and this is simply life threatening. Their entire life can center around them trying to find the drug and utilizing it. They may go to extreme cases to get the heroin, causing them to be a threat to the safety of others.
If a heroin addict is unable to get the heroin they crave, they will begin to feel withdrawal symptoms, and in extreme cases, these symptoms can occur just hours after the previous dose. Symptoms of heroin withdrawal include restlessness, muscle pain, diarrhea and insomnia. Usually though, withdrawal itself will not be fatal, even though the pain can be agonizing.