What is the main extrinsic cause of aging?
The greatest cause of extrinsic aging is photo-damage or exposure to ultraviolet (UV) light from the sun. Other environmental factors, such as pollution, play a role as well. Other measures, like sun exposure, smoking, alcohol use, diet, and wrinkles, are yet another culprit!
What is the difference between intrinsic and extrinsic aging?
Intrinsic ageing is influenced by internal physiological factors alone, and extrinsic ageing by many external factors. Intrinsic ageing is also called chronologic ageing, and extrinsic ageing is most often referred to as photoageing.
What are intrinsic and extrinsic factors of the skin?
Intrinsic factors that affect our individual aging process are the factors that are out of our control; mainly genetics. Extrinsic factors, as you can probably guess, are external factors that affect the health and appearance of our skin.
What is an example of intrinsic aging?
What are the signs of intrinsic ageing? The apparent signs of intrinsic ageing include the loss and descent of underlying fat, leading to hollowed cheeks and eye sockets, as well as loss of firmness and sagging skin as the bones shrink away from the skin due to bone loss.
Which of the following are extrinsic factors of skin aging?
Intrinsic aging is an inevitable physiological process that results in thin, dry skin, fine wrinkles, and gradual dermal atrophy, while extrinsic aging is engendered by external environment factors such as air pollution, smoking, poor nutrition, and sun exposure, resulting in coarse wrinkles, loss of elasticity, laxity …
Which of the following Ageing characteristics is considered extrinsic Ageing?
The most common signs of extrinsic ageing are thinning of the skin, laxity, fragility and the increased appearance of wrinkles. Sun exposure can also lead to pigmentation or sun spots and accentuate premature wrinkling.
What is intrinsic factor and extrinsic factor?
While intrinsic factors act from within an individual, extrinsic factors wield their influence from the outside (i.e., they are environmental, cultural, or related to lifestyle).
What is an extrinsic risk factor for falling?
For falls with an extrinsic precipitating cause, the most significant risk factors were: age, diabetes mellitus, a history of falling, and treatment with neuroleptics or oral bronchodilators.
What is intrinsic and extrinsic pigmentation?
To protect from solar irradiation, the skin utilizes a specific and complex mechanism called pigmentation. … Constitutive skin pigmentation reflects the genetically determined level of synthesized melanin and can be modulated by several intrinsic (secreted factors) and extrinsic regulatory factors such as UV light.