Glossary H

Hyperplasia refers to an increase in the number of cells in a tissue.

Hyperpolarization is defined as increased polarization across a membrane

Hypersexuality refers to abnormally expressive or aggressive sexual behavior, often in public; the term usually refers to behavior due to some disturbance of the brain. Hypersexuality is also defined as an excessive, insatiable sex drive in either men or women.
Hypersomnia - refers to a type of type of dyssomnia that involves being chronically sleepy and sleeping for long periods at a time. Also means sleeping too much or being too sleepy during the day. It is a sleeping disorder; an abnormally excessive sleep. A person with this condition falls asleep several times a day.

Hypertension refers to excessively and abnormally high blood pressure that occurs when the supply of blood through the blood vessels is excessive, putting pressure on the vessel walls and can lead to deterioration of the cell tissue and hardening of the arterial walls; a risk factor for a variety of medical problems, including coronary artery disease. Hypertension is a major risk factor for stroke and heart and kidney disease that is intimately related to psychological factors. Hypertension is also known as High blood pressure.

Hyperthermia is defied as an above-normal increase in body temperature.

Hyperthyroidism is a medical condition that occurs when the thyroid gland produces an excessive amount of thyroid hormone. This hormone controls many bodily functions, including metabolism, heart rate, and body temperature. Hyperthyroidism can cause a range of physical and psychological symptoms, including anxiety, irritability, weight loss, and tremors.

Hypertrophy refers to an increase in cell size.