Secondary hypertension is more common in preadolescent children, with most cases caused by renal disease. Primary or essential hypertension is more common in adolescents and has multiple risk factors, including obesity and a family history of hypertension.
Midge (family Chironomidae), also called chironomid, nonbiting midge, or gnat, any of a group of tiny two-winged flies (order Diptera) that superficially resemble mosquitoes. Although they resemble mosquitoes, midges are harmless, with small mouthparts that are not elongated into a piercing structure for blood feeding. They do not have scales on wings or body, and the pattern of wing veins differs from that of mosquitoes. The male antennae are feathery.
College of Agriculture and Life Sciences. Non-biting midge flies or chironomids commonly occur in inland and coastal natural and man-made bodies of water. These midges are commonly known as blind mosquitoes because they are mosquito-like but do not bite. Midges are also called fuzzy bills because of the males bushy antennae. These aquatic insects are tolerant of a wide range of environmental conditions.