You have probably heard of Dry July and Ocsober. These and other one-month alcohol abstinence campaigns are followed by many people worldwide. But do dry challenges work? Campaigns such as Dry July don’t necessarily aim at people quitting alcohol forever but perhaps think about their drinking habits. Most of the alcohol campaigns last for a month, exist in multiple countries, and include Dry January, Febfast, Dry July and Ocsober. Some of these may sound familiar to you. These campaigns come with accountability through social media and sometimes fundraising. This article is based on a study published in the Harm Reduction Journal, which analysed 13 sources which included studies and campaign…