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Normal Aging is Not Disease – Adult Health and Wellness
Physiological changes that accompany aging do not necessarily lead to disability. Aging does not cause declines in heart function, bone density, muscle strength, cognitive ability and memory, sexual desire and activity, physical and social functioning, nor does aging cause increases in blood pressure, cholesterol, and anemia. However, there are some inevitable changes that come with aging. Here are some of the expected changes in various body systems that occur as we age. How much change occurs in any particular body system depends on many factors, including our basic heredity, our lifestyle over the years, our emotional makeup, and how we learn to deal with disappointments, losses, problems, setbacks, and normal ups and downs. and the decline of life.
o Heart and circulation
The heart’s work slows down and has to work harder as we age. There is a decrease in the maximum pumping speed and a decrease in the amount of oxygen removed from the blood. The heart muscle gradually thickens and increases in size, and the arteries harden as fatty deposits and plaque build up on the walls of the blood vessels. As a result, many of us experience a gradual decline in energy and stamina over the years, and many of us develop atherosclerosis and other heart problems.
o Metabolism, body composition and body fat
A gradual decrease in metabolism along with hormonal changes often leads to a decrease in muscle tone. Body fat increases until middle age, stabilizes for several years, and then gradually decreases in the elderly. However, as we age, the layers of fat redistribute to surround the organs deeper beneath the skin. Women often accumulate fat in the hips and thighs, while men have an enlarged abdomen. Medicine and alcohol are processed more slowly and reflexes become slower when driving or playing sports and other activities.
o Brain and nervous system
From our thirties, there is a gradual loss and damage of some neurons, reduced blood flow, reduced brain weight and a gradual loss of brain cell function, including changes in memory, the inability to remember recent events or remember names and details. However, the brain adapts to these changes by increasing the number of connections between the cells that carry messages (synapses) and the dendrites and axons (branch-like extensions). A study in the Journal of Neuropsychology suggests that higher education may prevent age-related cognitive decline by allowing older adults to call on reserves from the frontal lobes of the brain. Life expectancy of a person is about 115-125 years. In mammals, there appears to be a strong correlation between lifespan and brain weight.
Starting in our mid-thirties, our bones gradually lose density and strength, losing minerals faster than they can be replaced. After menopause, many women experience increased bone loss, which increases the risk of osteoporosis. By the age of 65, every third person falls; One in 20 will end up with a fracture.
o Lungs and breathing
Starting in our twenties, lung tissue loses elasticity, rib cage muscles shorten, and our maximum breathing capacity decreases. As we age, especially for inactive people, the lungs become less efficient and the body’s cells receive less oxygen.
o Kidney and bladder
As the kidneys age, they decrease in size and function, becoming less effective at fighting dehydration or removing waste products and certain medications from the blood. Urinary frequency increases as bladder capacity decreases, and urinary incontinence may occur if the tissues atrophy.
Without exercise, muscle mass decreases by 22 percent in women aged 30-70, and 23 percent in men. However, strong muscles absorb oxygen and nutrients from the blood more efficiently, work less on the heart, and the body becomes more sensitive to insulin and absorbs blood sugar.
As we age, our bodies reduce collagen production, and the sebaceous glands produce less oil, which makes our skin gradually less elastic, dry and wrinkled. We can develop age spots or liver spots (brown, yellow, white or red) caused by low melatonin levels, waste accumulation and the development of carcinoma.
o Hair, nails
Our hair and nails grow more slowly as we age, and we also heal more slowly from wounds. Hair on the scalp, pubic area, and underarms gradually thins and the loss of hair pigment cells leads to gray and eventually white hair. Nail discoloration can be a warning sign of serious medical conditions, but nail changes are rarely the first sign. For example, red nail beds can indicate heart disease, while pitting and undulations on the nail surface indicate inflammation such as arthritis. White nails can indicate liver disease or anemia, while yellowish, thick, and slow-growing nails can indicate lung disease.
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