>>11220003ADHD (both PI and HI), depression, anxiety, fear, Asperger's and Sluggish Cognitive Tempo commonly cause procrastination. Yes, being lazy and immature does it too. It's believed that people with ADHD and procrastinate more due to underarousal, meaning things that are painful or boring are extra painful for them, making it harder to stop procrastinating. Low arousal theory also explains why ADHD and depression sufferers are more prone to all sorts of addiction