Pathobiology Of Aging Essay

Aging of the skin has many different factors contributing towards it and those factors fit into two different categories; extrinsic and intrinsic. Extrinsic includes a group of factors that people can influence themselves such as smoking, diet, sun damage and skin care. Intrinsic factors are those that are part of the natural aging process such as genetics and hormones. Skin aging is also affected by skin type, gender, age and ethnicity which can alter the aging process also.

As you begin to get older your muscles within your digestive tract can start to become really weak and would possibly start giving you the risk of having a lot of constipation. Also as you get older your heart is beginning to get less efficient and would not be able to pump the blood around your body like what it used to have done. Also the other things that could happen to your organs as you begin to get older are

Humans undergo several stages during their lifetime including growth, development, reproduction and senescence. Senescence is defined as the deteriorative biological changes that organisms experience as they age eventually leading to death. These changes include low metabolism, a weak immune system, memory loss, poor vision and loss of hearing. Senescence begins in humans during their post-reproductive years. However, gerontology research has shown that individuals who reproduce late have longer life spans compared to individuals who reproduce early. Nonetheless, it does not indicate that senescence is inevitable. All organisms experience senescence,

The aging process in late adulthood is called senescence. People cannot stop the effects of aging but there are alternatives that can help ease the process. These measures are not always followed because people make poor life choices such as smoking. Aging adults will even spend millions of dollars trying to slow the process of aging. No matter how much money they spend aging will occur.

Aging, though it is usually defined as a biological process, it is also the gathered development of change with time. Aging is a continuous, complex and dynamic process that begins even before birth and ends with death. Unless death occurs at an early age, all humans grow old and experience the effects of the aging process. The process of aging does not

It is a known fact that all measures of physiological function decline in human aging. While genetics certainly play a role in the declining of physiological function with age, it can be argued that a fundamental part of aging can be reflected by chemical processes resulting in the appearance of harmful side products of the normal metabolism over time. When enzymes speed up reactions it is harder to slow them down. At the same time side reactions are constantly occurring and more and more unwanted side products are continuously being formed.

Normal aging is a gradual decline in certain processes (Gladyshev, & Gladyshev, 2016). The decline is not static and can be increased or reduced depending on choices made (Gladyshev, & Gladyshev, 2016). Changes commonly attributed to aging include declines in the five senses, most organ systems, appearance and brain function (Tully, 2016). The five senses include reduction in taste buds, smell, ability to hear high frequency sounds and speech discrimination, reduced ability to see in the dark and a reduction in tactile sensory (Tully, 2016). In the organ systems there is a reduction in the hearts response to work, bone mass, skin turgor, vital capacity in the lungs, renal and colon function (Tully, 2016). Most notable is the age-related changes

Maxine thought this question was quite basic. However, after much thought she stated that aging is simply "advancing in age." Upon further questioning she explained that her definition is a view of the "total process" of aging. She does not define aging in a biological, functional, psychological, sociologic or spiritual domain.

In order to better understand aging-associated diseases, it is first necessary to define what aging is. Aging is a complex, multifactorial process of harmful mutations in cells and tissues that are accumulated over time and result in an increased risk of disease and, eventually, death (Tosato, Zamboni, Ferrini, & Cesari, 2007, p. 401). Contrary to the belief that aging can be cured through medical advances, it is scientifically accepted that, while human life expectancy has increased, the human life span has remained largely unchanged for the past 100,000 years (Tosato et al., p. 401). Therefore, future developments in aging research ought to focus on addressing treatment and prevention of major aging-associated diseases that will

Despite the many theory's Science now knows that the body has a DNA called telomeres and over time with aging these telomeres become brittle.

The second is extrinsic aging, which is the result of exposure to external factors, mainly ultraviolet (UV) irradiation, that is also referred to as photoaging.1 Intrinsic skin aging is influenced by hormonal changes that occur with age,2 such as the gradual decreased production of sex hormones from the midtwenties and the diminution of estrogens and progesterone associated with menopause. It is well established that the deficiency in estrogens and androgens

The way God created us as humans is a life cycle where eventually late adulthood comes with the biology of aging. Santrock (2013) describes five different theories of why humans age (p. 541). The evolutionary theory explains that aging is more of a natural selection process, and diseases occur in the elderly because they “would have been eliminated” if they were in younger people (Santrock, 2013, p.541). Cellular clock theory describes how cells get tired of dividing after they have been reproducing for so long (Santrock, 2013, p.541). Free-radical theory explains when “cells metabolize energy the by-products include unstable oxygen molecules known as free radicals” (Santrock, 2013, p.541). The unstable oxygen molecules can damage DNA and other structures inside the cell (Santrock, 2013, p.541). Mitochondrial theory describes how aging occurs because of the mitochondria essentially wearing out and becoming less efficient (Santrock, 2013, p.542). Mitochondria are the cell’s “power house,” and they convert energy inside the cell (Bailey, 2008). The last theory, hormonal stress theory, illustrates the effects of stress, especially long term stress, on aging (Santrock, 2013, p.542). Stress released hormones which depress the immune system making people more susceptible to disease (Santrock, 2013, p.542). There are many theories about why human’s age, and all of them may be true, but regardless aging is inevitable and so are its effects.

According to theory of aging, free radical interferes in this case. Aging is the apparently unavoidable decrease in physiologic function that happens after some time. At least four main theories of aging have been discussed that imply to clarify much or majority of the reason of biological aging:

Aging is the process of becoming older, as we age, multiple mutations occur that concern all the processes of aging well as it compromising a number of different genes. There are many theories of biological aging, such as the Cellular Aging Theory, Immunological Theory, and the Wear and Tear Theory. The Cellular Aging theory describes the process of aging in which cells slow their number of replication, thus giving each species a “biological clock that determines its maximum life span” and how quickly one 's health will deteriorate(Hooyman, 42). After a certain number of years, each cell which follows an apparent biological clock starts to replicate itself less, thus the specific individual or species slowly deteriorates. This theory gives

Also spelled as ageing, this is generally the process of becoming old. It is the in a way the opposite of immortality. In a broader aspect, it may occur to single cells in an organism also called cellular senescence or the population of a species, known as population ageing. This process primarily affects human beings and fungi. In humans, it signifies the accumulation of various changes which occur over time. The changes include physical, social and psychological changes.