

Heroin Tolerance
Drug Tolerance
Drug tolerance is "a decline in effects following repeated use." Consequently, more and more of a substance must be consumed, in order to achieve the same intensity of effect. Heroin tolerance is no different. Over time, mor


How Heroin Affects Pregnant Women
Unborn Child
The adult brain exists in a well-protected stable environment, which is due, in part, to a semi-permeable membrane that separates circulating blood from the brain. This membrane is referred to as the Blood–Brain-Barrier (BBB). It he


Does Heroin Affect Testosterone?
Testosterone is an essential component of a person's sexual health. That is why it's important to understand the full impact that heroin plays on testosterone levels.
Androgens and Testosterone
Androgens are sex steroid hormones. They are m


How Long Does Heroin Remain In Your System
Elimination half-life
The "elimination half-life" is the time period it takes for the plasma concentration of a drug to be halved. Hence, each successive half-life, less drug is eliminated. After one half-life the amount of drug remaining in the b

The Primary Cause Of Heroin Addiction
What is Addiction?
Addiction is an uncontrollable drive to do something. Drug addiction is an uncontrollable drive to consume a particular drug.
The Allure of Heroin
Drug Addiction
Any drug that produces changes in brain reinforc


How To Help A Friend Quit Heroin
What to expect
It's nice to help a friend. But if you're planning on helping someone quit heroin, you should know how to help them.
First of all, your friend is likely to experience a variety of withdrawal symptoms, including body aches, sneezi