do you think infections, traumatic brain injury, vitamin deficiencies, and the myriad of other reasons that can impair your cognitive function been prevalent th

do you think infections, traumatic brain injury, vitamin deficiencies, and the myriad of other reasons that can impair your cognitive function been prevalent throughout the history? That's all ADHD is, an umbrella term for impaired executive cognitive functions. ADHD can very often be due to undiagnosed conditions, or comorbidities that aggravate it. To put in perspective: there are billions walking around with undiagnosed hypertension, which is trivial to diagnose and treat. When was the last time you took your blood pressure?