Causes of Cognitive Impairment

Only about half of individuals who have memory loss or some other type of cognitive impairment have Alzheimer's disease (AD). Another common cause of cognitive impairment is vascular disease, which results in reduced blood flow to deep brain areas whose function then diminishes. Another very common cause of cognitive impairment is an existing medical condition that has gotten out of control. While not all of these causes of cognitive impairment are curable, almost all of them can be treated to arrest or delay progression. Treatment has the greatest chance of success when cognitive impairment is identified and treated early. These conditions include but are not limited to:

Medical Conditions

  • Heart Diseases
  • Peripheral Vascular Disease
  • Stroke and Other Types of Cerebrovascular Disease
  • High Blood Pressure
  • Low Blood Pressure
  • High Cholesterol
  • Diabetes
  • Thyroid Disease
  • Chronic Pain
  • Sleep Apnea
  • Chronic Lung Disease
  • Chronic Kidney Disease
  • Obesity
  • Menopause and Other Causes of Estrogen Deficiency
  • Testosterone Deficiency
  • Homocysteinemia
  • Vitamin D, B12, Folate, and B6 deficiencies
  • Alcohol and Other Substance Dependence
  • Cancer and Cancer treatment
  • Chronic Fatigue Immunodeficiency Syndrome
  • Chronic Stress
  • Certain Medications

Brain Conditions

  • Head Injury
  • Seizures
  • Multiple Sclerosis
  • Depression
  • Attention Deficit Disorder
  • Bipolar Disorder
  • Anxiety disorders
  • Post-traumatic Stress Disorder
  • Obsessive Compulsive Disorder
  • Schizophrenia
  • Autism

Neurodegenerative Disorders

  • Alzheimer's disease
  • Lewy body disease
  • Parkinson's disease
  • Frontal Temporal Lobe Disease