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Adipose tissue (also known as body fat or simply fat) is a loose connective tissue composed mostly of adipocytes. [1] [2] It also contains the stromal vascular fraction (SVF) of cells including preadipocytes, fibroblasts, vascular endothelial cells and a variety of immune cells such as adipose tissue macrophages.
Venus with a Mirror (1555) by Titian. Body image is a person's thoughts, feelings and perception of the aesthetics or sexual attractiveness of their own body. [1] [2] The concept of body image is used in several disciplines, including neuroscience, psychology, medicine, psychiatry, psychoanalysis, philosophy, cultural and feminist studies; the media also often uses the term.
Obesity is a medical condition, considered by multiple organizations to be a disease, [8] [9] [10] in which excess body fat has accumulated to such an extent that it can potentially have negative effects on health.
However, these numerical estimates of fat cell size depend largely on the measurement method and the location of the adipose tissue. [2] The fat stored is in a semi-liquid state, and is composed primarily of triglycerides, and cholesteryl ester. White fat cells secrete many proteins acting as adipokines such as resistin, adiponectin, leptin and ...
A higher ratio of body surface area (proportional to heat loss) to body volume (proportional to heat production) A higher proportional surface area of the head; A low amount of musculature and the inability to shiver; A lack of thermal insulation, e.g., subcutaneous fat and fine body hair (especially in prematurely born children)
The human body has a limited ability to convert ALA into the longer-chain omega-3 fatty acids — eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), which can also be obtained from fish. Omega−3 and omega−6 fatty acids are biosynthetic precursors to endocannabinoids with antinociceptive , anxiolytic , and neurogenic properties.
(Photo illustration: Liliana Penagos for Yahoo News; photos: courtesy of Lemme, Arrae, Getty Images) ... designed to build muscle mass and reduce body fat, ... this is merely a short-term effect ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 28 February 2025. Esters of fatty acid or triglycerides This article is about the type of nutrient in food. For fat in animals, see Adipose tissue. For chemistry of fats, see triglyceride. For other uses, see Fat (disambiguation). Idealized representation of a molecule of a typical triglyceride, the main ...