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    WebMD Symptom Checker

    Poor concentration, Sadness and Slow thinking

    WebMD Symptom Checker helps you find the most common medical conditions indicated by the symptoms poor concentration, sadness and slow thinking including Depression (Adult), Depression (Child and Adolescent), and Alzheimer's disease.

    There are 10 conditions associated with poor concentration, sadness and slow thinking. The links below will provide you with more detailed information on these medical conditions from the WebMD Symptom Checker and help provide a better understanding of causes and treatment of these related conditions.

    • Depression (Adult)

      Depression is a painful sadness that interferes with daily life and includes hopelessness, anxiety, and more.

    • Depression (Child and Adolescent)

      Depression is a painful sadness that interferes with a child's schoolwork, family life, and social activities.

    • Alzheimer's disease

      Alzheimer's disease is type of dementia that causes memory loss, as well as thinking and behavior problems.

    • Dementia in head injury

      Dementia resulting from a head injury may cause memory problems, difficulty speaking, and personality changes.

    • Sleep deprivation

      Sleep deprivation occurs when the lack of restful sleep is severe enough to compromise basic body functions.

    • Grief reaction

      Grief reaction, the way someone copes with a loss, causes include anger, sadness, anxiety, guilt, and more.

    • Head injury

      Symptoms of a head injury vary but include headache, nausea, dizziness, memory problems, confusion, and more.

    • Insulin reaction (hypoglycemia)

      An insulin reaction is the result of low blood sugar and causes anxiety, hunger, shaking, dizziness, and more.

    • Attention deficit hyperactivity disorder (ADHD)

      Attention deficit hyperactivity disorder (ADHD) makes it hard to concentrate and focus.

    • Bipolar disorder

      Bipolar disorder causes extreme mood swings between depression and mania.

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