People with severe chronic pain that has proven to be resistant to treatment may have a new bad guy to blame for their worsening condition: undiagnosed ADHD . A large study published in Scientific Reports looked at 958 patients across 13 specialized pain centers in Japan. Every participant had been living with pain for at least three months that hadn’t responded to standard treatment. They found that 17 percent of patients screened positive for ADHD symptoms. That’s more than double the general population rate. 27 percent of the study participants experiencing the most extreme pain had ADHD. Videos by VICE As the pain got more severe, so did the likelihood of ADHD symptoms. They didn’t find the same correlation with autism, which they also measured. ADHD stood out as the lone variable that tracked closely with how bad their pain felt. ADHD Might Be Pouring Gas on Chronic Pain It should be noted that this isn’t as simple as irresponsibly and boldly declaring that ADHD causes pain.…