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Hypersomnia
Hypersomnia is a sleep disorder characterized by excessive daytime sleepiness (EDS) despite having an adequate or prolonged amount of nighttime sleep. Individuals with hypersomnia often struggle to stay awake during the day and may fall asleep at inappropriate times, such as during work or while driving. This condition can significantly impact daily functioning and overall quality of life.
Hyperparathyroidism
Hyperparathyroidism is a condition characterized by the overactivity of one or more of the parathyroid glands, resulting in excessive production of parathyroid hormone (PTH). This hormone regulates calcium, phosphate, and vitamin D levels in the blood and bones. Elevated levels of PTH lead to hypercalcemia (high calcium levels), which can cause a range of health issues.
Hyperhidrosis
Hyperhidrosis is a medical condition characterized by excessive sweating that is not necessarily related to heat or exercise. This condition can affect any part of the body, but commonly impacts the palms of the hands, soles of the feet, underarms, and face. Hyperhidrosis can significantly impact the quality of life and daily activities of those affected.
Hydronephrosis
Hydronephrosis is a condition characterized by the dilation or swelling of the kidneys due to the buildup of urine within the renal pelvis and calyces, often caused by obstruction of urine flow. This obstruction can occur at any point along the urinary tract, from the kidneys to the urethra, and may be unilateral (affecting one kidney) or bilateral (affecting both kidneys).
Hydrocephalus
Hydrocephalus is a condition characterized by the accumulation of cerebrospinal fluid (CSF) within the brain, leading to enlargement of the cerebral ventricles and increased intracranial pressure (ICP). Hydrocephalus can occur at any age and may be congenital (present at birth) or acquired later in life due to various causes.
Huntington's disease
Huntington's disease (HD), also known as Huntington's chorea, is a progressive neurodegenerative disorder characterized by involuntary movements (chorea), cognitive impairment, and psychiatric symptoms. HD is caused by a genetic mutation in the huntingtin (HTT) gene, leading to the degeneration of specific neurons in the brain, particularly in the basal ganglia and cerebral cortex.
HRT
Hormone replacement therapy (HRT) is a medical treatment used to alleviate symptoms associated with hormonal deficiency or imbalance, particularly during menopause or following surgical removal of the ovaries. HRT can effectively relieve menopausal symptoms, improve genitourinary health, preserve bone density, and potentially reduce the risk of certain health conditions. However, HRT also carries risks and considerations, and treatment decisions should be individualized based on a thorough assessment of benefits, risks, and patient preferences. Women considering HRT should discuss their options with a healthcare provider to make informed decisions about treatment.