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Normal Aging is Not Disease – Adult Health and Wellness
The physiological changes that occur with aging do not necessarily cause disability. Aging does not inevitably lead to lower levels of heart function, bone density, muscle strength, cognitive ability and memory, sexual desire and activity, physical and social functioning, and aging does not also not an increase in blood pressure, cholesterol and anemia levels. However, some inevitable changes occur with aging. Here are some of the expected changes in various bodily systems that occur as we age. The extent of changes in a specific body system depends on many factors, including our basic heredity, our lifestyle maintained over the years, our emotional makeup, and how we have learned to deal with disappointments, losses, to problems, setbacks and normal ups. and the lows of life.
o Heart and blood circulation
The heart becomes less efficient and has to work harder as we age. There is a decrease in the maximum pumping rate and a decrease in oxygen extracted from the blood. Heart muscle gradually thickens and enlarges while arteries tend to stiffen as fatty deposits and plaque build up in the walls of blood vessels. As a result, most of us experience a gradual decline in energy and stamina over the years, and many develop atherosclerosis and other heart problems.
o Metabolism, body composition and body fat
Gradually declining metabolism as well as hormonal changes often lead to decreased muscle tone. Body fat tends to increase until middle age, stabilize for several years, and then gradually decrease in older age. However, as we age, layers of fat tend to redistribute under the skin to surround deeper organs. Women often store fat in their hips and thighs while men tend to develop larger abdomens. Drugs and alcohol are processed more slowly, and reflexes become slower when driving or participating in sports and other activities.
o Brain and nervous system
Beginning in your thirties, there is progressive loss and damage of some neurons, blood flow decreases, brain weight decreases, and there is a gradual loss of brain cell function, including memory changes, inability to remember recent events or remember names and details. However, the brain adapts to these changes by increasing the number of connections between cells (synapses) and the dendrites and axons (branch-like extensions) that carry messages around the brain. A study published in the Journal of Neuropsychology suggests that higher education may actually prevent age-related cognitive decline by allowing older adults to draw on reserves from the brain’s frontal lobes. The potential human lifespan 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 become less dense and less strong, losing minerals faster than they can be replaced. Bone loss tends to increase in many women after menopause, leading to an increased risk of osteoporosis. At age 65, one in three people reports a fall; one in 20 ends in a fracture.
o Lungs and Respiration
Starting in our twenties, lung tissue loses its elasticity, muscles in the rib cage shrink, and our maximum respiratory capacity decreases. As we age, especially for inactive people, the lungs become less and less efficient and the cells of the body receive less oxygen.
o Kidneys and Bladder
The kidneys decrease in size and function as we age, becoming less efficient at managing dehydration or removing waste products and certain medications from the blood. As bladder capacity decreases, urination may be more frequent and if the tissues atrophy, urinary incontinence may result.
Without exercise, muscle mass decreases by up to 22% for women and 23% for men between the ages of 30 and 70. Strong muscles, however, extract oxygen and nutrients from the blood more efficiently, create less work for the heart, and help the body remain sensitive to insulin and absorb sugar from the blood.
As we age, our body decreases its production of collagen and our sebaceous glands produce less sebum, which makes our skin progressively less elastic, drier and more wrinkled. We can develop age spots or liver spots (brown, yellow, white or red) caused by a decrease in melatonin, the accumulation of waste products and the development of carcinomas.
o Hair and Nails
Our hair and nails grow more slowly as we age, and we also heal more slowly from injuries. The hair on our scalp, pubic region and armpits gradually thins and the loss of hair pigment cells leads to gray and eventually white hair. Nail appearance can be a warning sign of serious medical conditions, but nail changes are rarely the first clue. For example, red nail beds may indicate heart disease while pitting and rippling of the nail surface suggests inflammation such as arthritis. White nails may indicate liver disease or anemia, while yellowish, thick, slow-growing nails may suggest lung disease.
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