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Aging - What happens to the body?

Subject: Biology, Human
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This thing with human aging've really become a sore point for many, especially women. In Hollywood, allow yourself to become a beauty surgery or injects it into neurotoxins such example. botox in the skin to combat wrinkles. This I think is extremely harmful to the body, because if it was not meant that we would get wrinkles when we get older, we would not have it either.
There are many things that happen to our bodies as we get older. Some suffer ålderssynhet usual. What happens is that the lens with ålderna become more rigid and difficult to change shape. Then it will be difficult to close up look sharp. It occurs usually in their forties, and then you need reading glasses.
Many other things also occur in connection with human aging. Women's egg ends mature in their 50s. Then the woman in menopause and that means big hormonal changes sometimes give different disorders, eg mood swings.
The hair turns gray or white because the melanin-producing cells in the hair follicles that would otherwise produce pigment gradually disappears.
Aging occurs only among animals in captivity because they are protected from predators, starvation, disease and accidents. In the wild the animals usually die because of any of these things. We humans have through our intelligence, culture and technology have gained such a good food supply, health care and security that we get old. We take care of each other, allowing the Charitable go before the natural.
Death of "natural causes" does not really know, when we die one sets usually the sickness that led to death. Aging in itself is not lethal, but it makes us vulnerable and finally so weak that we die.
The lifestyle affect aging. Even as a young affecting the health you get older. By not smoking, drinking too much alcohol or not to take drugs, contributes to a better quality of life and health in the bodily aging sets in. By exercising and eating healthy can also affect health positively.
What is it that triggers the aging process and the various things happening? Well, the physical age the changes are small up to the 40s. Thereafter, increasing the. The genetic material, the DNA, the cells control the biological aging process that takes place at various levels in the body - from DNA through the cells, tissues, organs, organ systems to the whole person. The process of aging - when and how we age - differs greatly between individuals. Some get white hair and age wrinkles early, others late.
Although already in their 60s tend to notice the aging process in the body, so can many functions in the body still function well even when you are over 80, depending on their genes. Things like mobility and muscle can be kept in trim by moving a lot. Sedentary is a health risk at all ages, but especially in old age.
As you get older is gradual reduction in the number of brain cells. Age Changes in body and soul together. Loneliness and lack of stimulation is just as negative factors such as tobacco, alcohol, drugs and poor diet for a good life in old age.
It takes a number of changes to our body as we age. We are getting shorter, lighter and at the same time drier. Both the man and the woman loses at 70 to 75 years of age a lot of their total body water and gets some percent fatter in relation to body weight. The skeletal age are already in their 40s when urkalkningen begins, in women increases the further into menopause. Smoking not only makes bones more fragile, but also accelerates the entire aging process.
With increasing age, you also usually less hearing. It becomes harder to perceive high tones and to distinguish speech in a buzzy or noisy environment. Radio interviews, which often puts on an authentic background noise, can be difficult to perceive for the elderly. During the life damaged by very noise and loud noise levels right from early childhood. We young people are exposed to dangerously high sound levels at concerts and discos, which may mean that more people are hearing impaired and need hearing aids in old age. Moreover, one can suffer life-long ringing in the ears, called tinnitus. Old people who have poor hearing have been through life lost many hair cells in the ear, but is also likely to change further into the auditory pathways.
The heart is a muscle that pumps each day around a total of six to eight thousand liters of blood with approximately 100,000 heartbeats. As we get older burdened heart more and heart volume increases, at least up to the age of 75. Blood vessels also become stiffer and less elastic, while the blood pressure rises. This gives the heart more difficult to fill with blood and pulling herself together. It bothered not pumping as fast as in younger days. When resting marked not so much, but when doing any physical activity. This increases the risk of developing disturbances in heart rhythm, arrhythmia, which in turn reduces the flow of oxygen into the body.
Also, lung elasticity is reduced, which makes it harder to breathe. It allows the carbon dioxide in the blood is not replaced oxygen as effectively. All these changes make you get worse condition and body reserves reduces the extra stress. While stress affects the cardiovascular function and blood pressure.
From 30 to 80 years of age reduces the heart's pumping capacity and lung function by 30-50 percent.
To keep the memory and the brain in the form it is important not to be passive, with no interest in his fellow human beings and their environment, to be active in body
and soul, caring. The brain wants to learn throughout life, through words, pictures, songs, music, play, and humor, animals and nature, commitment and social contacts. You are never too old to learn new things, but it takes longer in old age. The nervous system also works more slowly as they age. Nerve conduction velocity and response capacity is reduced by 15-30 percent. But our thoughts leaves its traces in the brain and you become better at what you practice, for example, to write, solve crossword puzzles, playing bridge, and other pursuits that activates the brain. In contrast, negative stress is not good for the brain and memory, ie when it gets too much, too long and too intense.

Sara Bergqvist

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One Response to "Aging - What happens to the body?"

  1. anna on May 26, 2010 at 10:43 pm #

    what happens to the nervous system as they age?

    notice how the older of the nervous system?

    how can you prevent / facilitate the nervous system?

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