COMMENTS: Coolidge effect is behind the power of Internet porn. The Coolidge effect is declining interest in with each copulation (lower and lower dopamine). Sexual novelty overrides this habituation with renewed excitement caused by higher dopamine. Novelty is what makes Internet porn so different from porn of the past.
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In addition to helping protect us from heart disease and cancer, a balanced diet and regular exercise can also protect the brain and ward off mental disorders.
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Read More… from Scientists learn how what you eat affects your brain — and those of your kids
As a former porn addict for two years, I can attest that porn addiction is like a chisel hitting at a rock repeatedly, slowly breaking it down. That is what pornography is essentially doing to your brain through an extended period of time. It takes a long time for the effects to be noticeable, but when they are, it is devastating.
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Read More… from Fourteen-month report: my brain is completely back to normal for the most part
Words to the wise from recovering users:
I was constantly tempted by old sites contacting me, or people I knew sending me inappropriate Emails. My last slip, the most disturbing slip, was because I checked an old Email account.
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Said one guy:
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Read More… from Unwiring & Rewiring Your Brain: Sensitization and Hypofrontality
by psychiatrist Richard A Friedman
As everyone knows, sex feels good.
Or does it? In recent years, I’ve come across several patients for whom sex is not just unpleasurable; it actually seems to cause harm.
One patient, a young man in his mid-20s, described it this way: “After sex, I feel literally achy and depressed for about a day.”
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Read More… from Sex and depression: In the brain, if not the mind
Researchers have found a naturally occurring protein that gets rats addicted with no drugs at all.
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Read More… from (L) BDNF – Flipping The Brain’s Addiction Switch Without Drugs (2009)
Comments: This is for the general public, but it can be a bit technical. Nevertheless, it is one of the best and most complete articles written on addiction. 
By Eric J. Nestler and Robert C. Malenka
February 09, 2004
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Read More… from (L) The Addicted Brain – Nestler and Malenka (2004)
by Rebecca Skloot (2007)