“…First, heavy alcohol use has been associated with ADHD (Brinkman et al, 2015;Charach et al, 2011;Osland et al, 2017) and is considered a risk factor for CAD (Mostofsky et al, 2016;Roerecke et al, 2011;Roerecke and Rehm, 2010). Second, those with ADHD are more likely to be or have been a frequent smoker (Kollins et al, 2005;Milberger et al, 1997;Osland et al, 2017;Pomerleau et al, 1995), and smoking is in turn a risk factor for both CAD (Hackshaw et al, 2018) and COPD (Pauwels et al, 2001). However, ADHD has also been linked to lower educational attainment (EA) (Polderman et al, 2010), which in turn has been associated with CAD (Kubota et al, 2017;Qureshi et al, 2003), COPD (Gjerdevik et al, 2015), and increased drinking frequency and smoking initiation (Latvala et al, 2014).…”