Does he by any chance have ADHA? Here are some symptoms of it:
A person with ADHD may have some or all of the following symptoms:
difficulty paying attention to details and tendency to make careless mistakes in school or other activities; producing work that is often messy and careless
easily distracted by irrelevant stimuli and frequently interrupting ongoing tasks to attend to trivial noises or events that are usually ignored by others
inability to sustain attention on tasks or activities
difficulty finishing schoolwork or paperwork or performing tasks that require concentration
frequent shifts from one uncompleted activity to another
procrastination
disorganized work habits
forgetfulness in daily activities (for example, missing appointments, forgetting to bring lunch)
failure to complete tasks such as homework or chores
frequent shifts in conversation, not listening to others, not keeping one's mind on conversations, and not following details or rules of activities in social situations
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