Live Support

Short Blogs

Most drugs affect the brain's "reward circuit" by flooding it with the chemical messenger dopamine. This reward system controls the body's ability to feel pleasure and motivates a person to repeat behaviors needed to thrive, such as eating and spending time with loved ones. This over stimulation of the reward circuit causes the intensely pleasurable "high" that can lead people to take a drug again and again.

As a person continues to use drugs, the brain adjusts to the excess dopamine by making less of it and/or reducing the ability of cells in the reward circuit to respond to it. This reduces the high that the person feels compared to the high they felt when first taking the drug—an effect known as tolerance. They might take more of the drug, trying to achieve the same dopamine high. It can also cause them to get less pleasure from other things they once enjoyed, like food or social activities.

Long-term use also causes changes in other brain chemical systems and circuits as well, affecting functions that include:

  • learning
  • judgment
  • decision-making
  • stress
  • memory
  • behavior

Despite being aware of these harmful outcomes, many people who use drugs continue to take them, which is the nature of addiction.

E-mail me when people leave their comments –

Hi, I am a social activist blogger cum youtuber. I have written health and fitness blogs on several websites and everyone appreciates. I am passionate about holistics. Writing is my passion and I love it!

You need to be a member of People's Forum to add comments!

Join People's Forum

Blog Area

This area is for people to post view discuss and create blogs.

If you would like to create a blog click Add Blog Post