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Amazon tribe Tsimane have the healthiest heart : Study

Raghu Kshitiz

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KATHMANDU — Heart disease, a disease that until now doctors have thought inevitably becomes a risk with age, is the biggest killer in the world. But the Tsimane people of the Bolivian Amazon, do not demonstrate the pattern seen in Western and industrialised societies.

The Tsimane people living in the forests of Bolivia as those with the healthiest arteries found anywhere in the world, according to the study, published in The Lancet journal.

A high carbohydrate diet of rice, plantain, manioc and corn, with a small amount of wild game and fish – plus around six hours’ exercise every day — has given the Tsimané people the healthiest hearts in the world, the study said.

The Tsimane have the lowest reported levels of vascular ageing for any population studied, with rates of coronary atherosclerosis five times lower than in the US, researchers said.

For the study, researchers visited 85 Tsimane villages between 2014 and 2015 and took CT scans of the hearts of about 700 adults between the ages of 40 and 94 to measure the extent of the hardening of the coronary arteries among other metrics.

85 percent of the Tsimane people,based on the CT scans, had no risk of heart disease, 13 percent had low risk and only three per cent had moderate or high risk.

The findings continued into old age, where nearly two-thirds of those over 75 years old had almost no risk of heart disease and only eight percent had moderate or high risk.

“These findings are very significant,” said Randall Thompson, from Saint Luke’s Mid America Heart Institute, who presented the results of the study at American College of Cardiology (ACC) here.

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“Put another way, the arteries of the Tsimane are 25-30 years younger than the arteries of sedentary urbanites. The data also show that the Tsimane arteries are aging at a much slower rate,” said Thompson.

Age, smoking, high cholesterol, high blood pressure, physical inactivity, obesity and diabetes, accompanied by the loss of subsistence diets and lifestyles in contemporary society could become a risk factor for heart disease, the research has suggested.

In the Tsimane population, heart rate, blood pressure, cholesterol, and blood glucose were also low, possibly as a result of their lifestyle.

“In cities, we can drive to a fast food restaurant and pick up 2,000 calories without getting out of our car,” said co-author Ben Trumble.

But the Tsimane people spend most of every day hunting, fishing, farming and gathering wild fruits and nuts, and follow a carbohydrate-based diet containing little protein and fat.

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Type 2 diabetes early in life found to increase risk of fatal heart disease by 60 pc

Gorkha Post

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KATHMANDU — Developing Type 2 diabetes early in life increases risk of death linked to heart disease by 60 percent, according to a study published in Diabetologia.

The condition was once considered a disease of the elderly but the obesity epidemic has led to a surge in cases in young adults and even children too.

Research on 744,000 sufferers over 15 years to 2011 found the average diagnosis age was 59 and there were 115,363 deaths during the period.

It was associated with a 60 percent higher relative risk of dying from heart disease or stroke. Not only that, it was linked to almost a 30 percent higher risk of death from any cause, though a lower risk of dying from cancer was seen.

“Type 2 diabetes in young people is somewhat aggressive and leads to higher mortality,” said study co-author Dianna Magliano, head of the diabetes and population health laboratory at the Baker Heart and Diabetes Institute in Melbourne, Australia.

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Dr Joel Zonszein, director of the Clinical Diabetes Center at Montefiore Medical Center in New York City, said “Type 2 diabetes has evolved through the years into a different type of disease. It used to be a disease of the elderly.” He was not involved with the study.

“What we see nowadays with Type 2 diabetes is that it’s affecting a younger population and is more aggressive. There’s more weight, more lipotoxicity, more insulin resistance and more inflammation, and inflammation can cause premature cardiovascular disease,” Zonszein said.

Lipotoxicity is when the fats in the blood, or cholesterol, build up in places they shouldn’t, such as the liver, kidneys or heart.

The researchers also think the reason the younger people had fewer cancers is that it’s just more common for older people to have cancer.

They also suggested that because this group of younger people is being treated for Type 2 diabetes, it’s possible that when they do have cancer, it’s getting diagnosed and treated sooner, because they’re already engaged in the health care system.

With Agency Inputs

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