HDL cholesterol
The higher the HDL cholesterol level, the lower the risk of coronary artery disease.The average man has an HDL cholesterol level of 40 to 50 mg/dL. In the average woman, HDL levels range from 50 to 60 mg/dL. An HDL cholesterol of 60 mg/dL or higher gives some protection against heart disease. Regular aerobic exercise, loss of excess weight (fat), and cessation of cigarette smoking increase HDL cholesterol levels. When lifestyle modifications are insufficient, medications can be used.
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The syndrome of familial Hypoparathyroidism, sensorineural Deafness, and Renal dysplasia. Inherited as an autosomal dominant trait, the syndrome is caused by haploinsufficiency of the GATA3 gene in chromosome 10p. The hypoparathyroidism causes hypocalcemia (a low level of calcium in blood) and lifelong fatigue and depression. The deafness is congenital (present at birth). The kidney dysplasia […]
- Head and neck cancer
Paranasal sinus and nasal cavity cancer Lip and oral cavity cancer Nasopharyngeal cancer Oropharyngeal cancer Hypopharyngeal cancer Laryngeal cancer Salivary gland cancer Parathyroid cancer Thyroid cancer There are also metastatic head and neck cancers in which the primary tumor where the cancer originated may or may not be known.
- Head bones
There are 29 bones in the human head. They consist of 8 cranial bones, 14 facial bones, the hyoid bone, and 6 auditory (ear) bones. The 8 cranial bones are the frontal, 2 parietal, occipital, 2 temporal, sphenoid, and ethmoid bones. The 14 facial bones are the 2 maxilla, mandible, 2 zygoma, 2 lacrimal, 2 […]
- Head injury
Damage to any of the structures of the head as a result of trauma. While the term “head injury” is most often used to refer to an injury to the brain, head injuries may also involve the bones, muscles, blood vessels, skin, and other organs of the face or head. A head injury does not […]
- Head lice
Kwell) contains gamma benzene, which can be toxic to the brain and has been linked to childhood leukemia. For this reason, these medications are no longer generally recommended for treatment for head lice.