There are two theories as to why people age. One theory posits that aging is naturally programmed into the body. The second theory is that aging is the result of damage that has accumulated during life, which is why some people live longer than others.Continue Reading
Everyone ages differently, and scientists believe that the rate at which someone ages comes down to four main things: chemistry, behavior, physiology and genetics. Studies have proven that when scientists adjust the genes in yeast cells, mice and other organisms, the life span of those creatures can be nearly doubled. It is believed that genetics makes up about 35 percent of a person's aging process.
Even with good genes, the body continues to undergo chemical changes throughout its life. Some of these changes cause damage to the body and are factors in the aging process. DNA repair, hormones, heat shock proteins and free radicals are all important concepts when looking at the biochemistry of aging.
As a person ages, certain organs in the body change. This includes the heart, which thickens over time. This thickening is due to a thickening of arteries. This gives the heart a much lower maximum pumping rate. As the immune system ages, it takes longer to replenish T cells. As a result, older people take longer to get over being sick.Learn more about Older Adults
Senior living apartment complexes that accept people age 55 and over are found at A Place for Mom or Seniorliving.org. Both are resources that can assist with locating senior living residences in local areas. Information about specific senior residence communities is provided online or by phone.Full Answer >
The Senior Corps is an organization that connects people over the age of 55 with volunteer organizations, according to the Corporation for National and Community Service. The organization helps seniors find ways to use their education, job expertise and skills to serve the community through volunteer work, such as community projects, mentoring and coaching.Full Answer >
Retirement communities for people aged 55 and over provide seniors with housing and activities designed for their age group. Communities may offer apartments or houses that are often smaller, safer and easier to navigate. Residents typically do not have to handle household maintenance or yard work.Full Answer >
Vital capacity decreases with age due to physiological, anatomical and immunological changes that weaken the respiratory system over time. The lungs mature at age 20 to 25, and then progressively decline, according to a study published on the National Center for Biotechnology Information.Full Answer >