ADHD Overview
Attention deficit hyperactivity disorder (ADHD), also known as attention deficit disorder (ADD), is a condition in which a person’s inability to focus and concentrate on a task or purpose interferes with his or her ability to be productive. It can also affect how people develop social relationships or self-esteem.
Children with ADHD are often seen as unable to settle down —impulsive, hyperactive, disruptive, and even aggressive in classroom and social settings.
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Erectile dysfunction (ED or (male) impotence) is a sexual dysfunction characterized by the inability to develop or maintain an erection of the penis. There are various underlying causes, such as cardiovascular leakage and diabetes, many of which are medically treatable.
The causes of erectile dysfunction may be physiological or psychological. Physiologically, erection is a hydraulic mechanism based upon blood entering and being retained in the penis, and there are various ways in which this can be impeded, most of which are amenable to treatment. Psychological impotence is where erection or penetration fails due to thoughts or feelings (psychological reasons) rather than physical impossibility; this can often be helped. Notably in psychological impotence there is a very strong placebo effect.
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