Online College Courses for Credit

+
2 Tutorials that teach Effects of Aging on Your Body
Take your pick:
Effects of Aging on Your Body

Effects of Aging on Your Body

Author: Sophia Tutorial
Description:

Understand the effects of aging on the human body.

(more)
See More
Fast, Free College Credit

Developing Effective Teams

Let's Ride
*No strings attached. This college course is 100% free and is worth 1 semester credit.

37 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 32 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial
what's covered
How does the human body change as a person ages? This tutorial will discuss what happens to the body as it ages, specifically focusing on:
  1. Effects of Aging
  2. Conditions Associated with Aging

1. Effects of Aging

Senescence is a word that means aging. As a person ages, visible (and sometimes non-visual) changes occur in the skin, muscles, and skeleton.

  • Skin: Collagen and elastin are proteins that give skin strength and elasticity (the ability of skin to bounce back to its original shape when pressed or stretched). As a person ages, these proteins change, and less of these proteins are produced by the body, causing skin to wrinkle. Also, skin becomes more dry due to the breakdown of oil glands.

  • Height: Intervertebral disks become more compact as a person ages, causing them to lose some of their height.
File:7427-Discs.png

  • Muscle: Loss of mass and strength.
  • Bones: Cells become less efficient at generating new tissue.
  • Organ Function: Organ systems begin to decline and become less efficient as the body ages.
  • Hair loss: Hair loss is a sign of aging but some people may lose their hair more quickly or may lose more hair than others; this heavily depends on genetics.
  • Body cells: Body cells will divide 80 to 90 times before they die. Telomeres are caps on the ends of DNA. As cells divide, they lose a little bit of the telomeres "cap" until only a few remain and the cell dies.

File:7428-Body_Cells.png

did you know
How a person ages can also be affected by their genes and the amount of accumulated DNA damage. Genetics play a role in how a person ages. Height loss, wrinkles and/or hair loss may be more evident in some people than others depending on their genetics.

terms to know
Senescence
The technical term for aging.
Collagen
The most abundant protein in the human body, collagen is a large fibrous structural protein found in many connective tissues.

Elastin
A thinner, “stringier” protein than collagen, elastin allows tissues to be stretched when pressure is applied to them and resume their shape once pressure is relieved.

2. Conditions Associated With Aging

Three conditions associated with aging are:

  • Alzheimer's disease: A disease that affects the brain and becomes more and more likely to occur the older a person gets. Alzheimer's disease results in memory loss and the decline of normal mental functions.
  • Menopause: This marks the end of a menstrual cycle and fertility (the ability to conceive and bear children) for women. Menopause for women usually happens around age 50. This is around the time a woman will have her last menstrual cycle, marking the end of her fertility. The ovaries are producing less estrogen and less progesterone. Menstrual cycles stop occurring, and the woman is no longer able to have children at this point.

  • Andropause: Often sometimes referred to as "male menopause". Males will have a decrease in testosterone levels but can still have children into old age. On the other hand, women after menopause are no longer able to have children.

terms to know
Alzheimer’s Disease
A form of dementia that is caused by a degeneration of neurons and synapses of the cerebral cortex; this degeneration causes memory loss and other complications as the disease progresses.
Menopause
The cessation of menstrual cycles in females that marks the end of her fertility.

Andropause
Referred to as “male menopause”, andropause is when testosterone levels, libido, and fertility decline with age; however, males are still able to conceive a child.

summary
This lesson has been an overview of the effects of aging on your body or senescence, the technical term for aging. There can be visible signs to aging such as wrinkles or thinning hair or other conditions such as Alzheimer's disease, menopause or andropause. Good luck.

Source: This work adapted from Sophia Author Amanda Soderlind.

Attributions
Terms to Know
Alzheimer’s Disease

A form of dementia that is caused by a degeneration of neurons and synapses of the cerebral cortex. This degeneration causes memory loss and other complications as the disease progresses.

Andropause

Referred to as “male menopause”, andropause is when testosterone levels, libido and fertility decline with age; however males are still able to conceive a child (unlike women).

Collagen

The most abundant protein in the human body, collagen is a large fibrous structural protein found in many connective tissues.

Elastin

A thinner, “stringier” protein than collagen, elastin allows tissues to be stretched when pressure is applied to them and resume their shape once pressure is relieved.

Menopause

The cessation of menstrual cycles in females that marks the end of her fertility.

Senescence

The technical term for aging.