Gary changed the way the world thinks about pornography.

As the key mind behind the peer-reviewed paper ‘Is Internet Pornography Causing Sexual Dysfunctions? A Review with Clinical Reports’, Gary helped to change the face of pornography research.

This paper put the term Pornography Induced Erectile Dysfunction (PIED) into the scientific literature. By saying that pornography was potentially harmful Gary and his co-authors, seven US Navy doctors, faced massive resistance from supporters of the pornography industry. Gary bravely resisted every effort to have publication of the paper blocked. His persistence was rewarded. It has now been cited 131 times and is the most widely read paper the journal Behavioural Sciences has ever published.

Gary’s other huge contribution is the website yourbrainonporn.com. In the past year over 3.6 million people have used it as their trusted source of publicly available information about the harms of pornography. We will help it grow even stronger over the coming months and years.

What an achievement. I will miss Gary every day.