Memory Loss: Clinical Meaning

Hypothyroidism

Hypothyroidism occurs when the thyroid gland doesn't produce enough thyroid hormone. This slows metabolism and causes fatigue, weight gain, cold intolerance, constipation, and depression. Hashimoto's thyroiditis is the most common cause.

Epilepsy

Epilepsy is a neurological disorder characterized by recurrent, unprovoked seizures resulting from abnormal electrical activity in the brain. It affects people of all ages and can be managed with medication in most cases.

Alzheimer's Disease

Alzheimer's disease is the most common cause of dementia — a progressive neurological disorder that destroys memory and other cognitive functions. It typically begins with mild memory loss and progresses to severe cognitive impairment.

Huntington's Disease

Huntington's disease is a hereditary neurodegenerative disorder caused by a CAG repeat expansion in the HTT gene, causing progressive motor, cognitive, and psychiatric deterioration. Symptoms typically begin in mid-adulthood with no disease-modifying treatment.

Normal Pressure Hydrocephalus

Normal pressure hydrocephalus presents with the classic triad of gait disturbance, urinary incontinence, and cognitive decline in older adults. It is caused by abnormal CSF accumulation and can be treated with ventricular shunting.

Pernicious Anemia

Pernicious anemia is an autoimmune condition in which antibodies against intrinsic factor prevent vitamin B12 absorption, causing megaloblastic anemia and neurological complications. Intramuscular B12 injections bypass the absorption defect.

Sleep Deprivation

Sleep deprivation occurs when an individual gets insufficient sleep. Chronic sleep loss affects nearly every physiological system and increases risks of obesity, diabetes, cardiovascular disease, and mental health disorders.

Post-Concussion Syndrome

Post-concussion syndrome occurs when concussion symptoms last beyond the expected recovery period. Symptoms can persist for months or even years and require multidisciplinary management.