What is the information for this topic?
- genetic, which means it is influenced by the factors and conditions that are passed on from parents to offspring
- biochemical, which refers to activities in the cells, tissues, and organs of the body
- physiological, which means how the body and all of its components function together
- Genes switch on and off in turn, causing different things to happen at different times. Organ systems in each person can age at different rates.
- Hormones act as a biological clock controlling the pace of aging.
- The immune system breaks down, later leaving a person more and more prone to infection and disease.
- Cells and tissues have vital parts that wear out.
- If a person has a high metabolic rate, his or her life span will be shorter.
- Proteins in the body build up. This slows down the body's processes, and the body begins to age.
- Oxygen radicals collect in the body and damage it. The organs eventually stop working.
- The system in the body that synthesizes proteins stops working well. Faulty proteins are developed and cause damage to cells, tissues, and organs.
- Genes mutate as the body ages, causing cells to malfunction and break down.
- Stay active. Without exercise, muscle mass declines about 23% between the ages of 30 and 70. Exercise can prevent muscle mass decline.
- Maintain a healthy weight. People who are as little as 11 pounds over the healthy weight range for their height and build have more risk of disease. Eating fewer calories may work by preserving cells, moderating a decline in growth hormone, and keeping the immune system working well.
- Do not
smokeand avoid being around smoke from tobacco.
- Maintain active personal relationships. People who are married or who have healthy, supportive relationships with others live longer.
- Eat five servings of fruits and vegetables each day. Follow the
food guide pyramid. Fruits and vegetables have naturally occurring antioxidants that prevent free radicals from damaging cells in the body.
- Avoid getting too much sun. Frequent, long exposures to the ultraviolet light in sunshine can age the skin and increase the risk for skin cancer.
- Keep fat in the diet under 30% of total calories. Also, get the nutrients needed for a healthful diet.
- Have routine
physical examsas recommended by the doctor.
stressand practice stress-reduction techniques.
In Search Of the Secrets of Aging
National Institutes of Health
National Institutes on Aging
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