The brain becomes addicted because it thinks heroin is needed for ___.
Survival
The fastest strongest way heroin affects the body.
Injection
Heroin slows down what body function?
Breathing
Needing more of a drug to get the same effect is called this.
Tolerance
Too much heroin can cause a person to stop doing this.
Breathing.
The brain remembers heroin "high" and pushes the person to use again because of what?
Cravings.
What is the sleepy, droopy state users often enter after using heroin.
The Nod
Heroin causes the eyes to do what?
Heroin causes pupils to become very small or "pinned".
Withdrawal usually starts about this many hours after the last dose.
12 hours.
During overdose, what can drop to just a few of them per minute.
Breaths
The brain mistakes heroin for its own natural painkillers which are ___.
Endorphins
Many users start using heroin by doing what?
Sniffing or Smoking
A common stomach problem caused by heroin use.
Constipation
Common withdrawal symptoms include vomiting, cramps, anxiety, and ____.
Insomnia
This drug can reverse a heroin overdose.
Naloxone (Narcan)
The main chemical in heroin that causes the "high".
Morphine
People avoid needs partly because of the fear of what disease?
HIV
Standing up after using heroin may cause this.
Fainting
This slang term comes from goosebumps during withdrawal
Cold Turkey
Without help, overdose can lead to coma and this.
Death
Heroin affects the brain by attaching to these special brain sites.
Opioid Receptors
Using dirty or shared needles can cause serious infections like this.
Hepatitis C
What is flushing?
When heroin can make the skin feel warm, itchy, and sweaty.
Withdrawal from Heroin is extremely uncomfortable but usually is not ____.
Deadly.
Naloxone causes sudden withdrawal because it kicks heroin off these.
Opioid receptors.