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Health Policy & Issues

Published: October 1, 2013 09:46 IST | Updated: October 1, 2013 09:53 IST

Healthy lifestyle keeps dementia at bay

Ramya Kannan

Eef Hogervorst, Professor of Biological Psychology, University of Loughborough, UK. Photo: K.V. Srinivasan

Everyone thinks dementia is a normal process of ageing, but it really is a separate disease. It is only true that therisk factors increase with age, and stands to reason that living healthy delays onset by many years, says EefHogervorst, Professor of Biological Psychology, University of Loughborough, UK.

One of the main causes for dementia is Alzheimers that causes toxic plaques to form in the brain and deter itsfunction. Dementia could also arise due to vascular events in the brain such as stroke. But it is usually caused by acombination of factors, which include, believe it or not, your level of education.

If you have a higher level of education, the symptoms are not apparent until very late, and the decline is rapid,

within perhaps two years, as against 12 years in those with low education, Prof. Hogervorst explains. It probablyhas to do with the fact that people with high education have a lot of coping skills; if they forget one word, they canfind another; and a lot more functional connections between the neurons.

Prof. Hogervorst was in Chennai to deliver, at the instance of the Trimed Health and Lifestyle Forum 2013, theX1Appa Rao Lecture on Lifestyle and the Ageing Brain, on Sunday. In a chat with The Hindu on Monday, shestressed on the remediable risk factors, and gave workable tips on shaping up and keeping dementia at bay.

The group of risk factors one can influence are those causing heart disease Hypertension, Obesity (hyper)Lipidaemia and Diabetes (HOLD). Add smoking to this, and what you have is a potential cocktail of risks for notonly heart attacks, but also dementia.

For her, it is not about taking more medication, but rather, exercise. The right exercise - something that makes yousweat, and increases your heart rate. We have to do that at least 150 minutes a week. It might sound like a lot, but it

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is not too bad if we can incorporate it into our lifestyle, Prof. Hogervorst says. Walking to the store, taking thestairs instead of elevators and maybe brisk walking before having a meal can help.

Studies have shown that taking up weight or resistance training is good for improving memory function. You donteven have to do much. Just 20 minutes three times a week, and it can be done even when you are watching thetelevisionyou could lift cans or water bottles in each hand, she says.

But the ideal would be to go back to traditional activities: washing clothes, sweeping. May be this is the reason whyin the past women did not get heart disease so much all this was hard physical labour. But weve stopped doingthat, and women dont have the protection they used to have against heart disease that they had earlier. Going back

to older systems of medicine might also help, especially if they are used in conjunction with allopathy. The workthat Trimed is doing with holistic intervention is one lesson I can take from India.

Diet-wise, she suggests we stay off sugar and processed foods. The recommended ideal is a Mediterranean diet, butthe Indian diet is also suited for this, she says. If you are having a chappati, have a whole meal chappati, substitute

white rice with brown or red rice. Have a lot of lentils a rich source of folates. Low folate intake doubles the risk ofdementia, Prof. Hogervorst explains.

At the moment India has an estimated 3.7 million people with dementia. But this will double in the next couple ofdecades, what with increasing urbanisation and a high incidence of diabetes in the population, she warns. And thetime to make amends, for those with sedentary lifestyles, and lousy diets, is mid life. As we get older our resilienceto handle stress and bad food comes down. Mid life is the last port of call when we have to wake up and worktowards reducing risk factors for heart disease or dementia. That way, we can keep people happy and as cognitivelystable for as long as we can, she says.

Keywords: dementia, Eef Hogervorst,Alzheimers, ageing

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