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April 27 2005
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Five Ways to Reduce Your Risk of Dementia

 

Participating in a variety of exercise activities may reduce the risk of dementia in older people -- and having variety in exercise seems to be even more important than how often, how long or how intense the exercise is performed, according to Johns Hopkins researchers.

The study involved 3,375 people aged 65 years and older who took part in the Cardiovascular Health Cognition Study from 1992 to 2000. None of the volunteers had dementia at the beginning of the study. Each participant filled out a questionnaire reporting how often, and for how long, they performed 15 types of physical activity ranging from hiking and jogging to household chores and gardening. The researchers then created an activity index that calculated the number of different activities each person had participated in over the previous two weeks (other factors, such as APOE genotype (indicating a predisposition to Alzheimer's disease), age, gender, smoking and education level were also taken into account).

After an average of 5.4 years, 480 new cases of dementia were found. Those who participated in more activities had a lower risk of all forms of dementia, including Alzheimer's disease and vascular dementia. However, the association was not found among those who have the APOE-4 genotype.

Specifically:

  • Among the people who reported one or no activity, 130 cases of dementia occurred.
  • 152 cases occurred among those who reported two activities.
  • 113 cases occurred among those who reported three activities.
  • 84 cases occurred among those who reported four or more activities.

Researchers are not certain what is causing the association, but suggest that participating in a variety of activities may keep more areas of the brain active, or may indicate that a person is more involved in physical and social activities overall.

Confirming the association between activity and a lowered risk of dementia may motivate people to stay involved in a variety of physical and leisure activities as they age. This is an important finding as close to 4.5 million Americans currently suffer from Alzheimer's disease, the most common form of dementia, and the disease is expected to affect 11.3 million to 16 million Americans by 2050.

American Journal of Epidemiology April 1, 2005, 161(7): 639-651

Science Daily April 14, 2005



Dr. Mercola Dr. Mercola's Comments:

I am a big believer in exercise being an absolutely essential component to achieving and maintaining your optimal health, so much so that I often tell my patients I don't care what they do, as long as they regularly move and move enough.

This study takes things one step further, proving that variety of activity may be just as important as actually doing any is. The easiest way to provide your body with a wide range of physical activity is to exercise at every opportunity.

You've heard it all before. In addition to getting a daily dose of 60-90 minutes or more of pure exercise a day, you can also find a number of other ways to increase your physical activity level.

Doing things like parking farther away from your destination and walking there and taking the stairs instead of the elevator are just the tip of the iceberg. If you pay attention, you will find opportunities for exercise everywhere.

Regular exercise is an absolute necessity for improvement in just about any facet of health, and for the prevention of disease. It is a major component of my protocol for the prevention of Alzheimer's disease, and reading this study only helps to confirm its status.

My five additional steps for preventing Alzheimer's disease are:

  1. Eat a Nutritious Diet. Follow the Total Health guidelines, being sure to increase your intake of fresh vegetables, which are high in folate, along with restricting grains and sugars.

    I also recommend consuming high-quality fish or cod liver oil so you can meet the optimal amount of omega-3 fats needed to achieve good health and fight Alzheimer's. Be sure to use a brand of exceptional quality, like Carlson's fish and cod liver oil. This will ensure that the oil is free of mercury and other toxins. You can find Carlson's and other good brands at your local health food store. If this is a problem for you, for your convenience we also carry these in our store.

  2. Avoid and Remove Mercury From Your Body. Even trace amounts of mercury can cause the type of damage to nerves that is characteristic of the damage found in Alzheimer's disease. Dental amalgam fillings are one of the major sources of mercury, however you should be healthy prior to having them removed. Once you have adjusted to following the Total Health plan, you can follow my mercury detox protocol and then find a biological dentist to possibly have your amalgams removed.

    Other sources of mercury include most seafood, thimerosal-containing vaccinations and flu shots, which contain both mercury and aluminum.

  3. Avoid Aluminum. Aluminum has been widely associated with Alzheimer's disease. Your main sources of exposure are likely through drinking water and antiperspirants.

    Aluminum cookware may also be a source of exposure. Although aluminum pots are probably less problematic than the sources mentioned above, I personally would not use aluminum cookware.

  4. Challenge Your Mind. Mental stimulation, such as traveling, learning to play an instrument or doing crossword puzzles, is associated with a decreased risk of Alzheimer's. Researchers suspect that mental challenge helps to build up the brain, making it less susceptible to the lesions associated with Alzheimer's disease.

  5. Finally, try Wild Blueberry IQ, an all-natural, whole fruit softgel made from wild blueberries, which have high anthocyanin and antioxidant content that are known to guard against Alzheimer's and other neurological diseases.

Related Articles:

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Your Brain Makes Insulin and it Might Cause Alzheimer's

Worry Accelerates Your Risk of Alzheimer's

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