Showing posts with label heart health. Show all posts
Showing posts with label heart health. Show all posts

Saturday, November 16, 2019

WANT TO LIVE LONGER? GET A DOG.

Two recent studies show that owning a dog can significantly extend one's life, especially after a major health setback such as a heart attack or stroke. The researchers chalk up the health benefits of dog ownership to reduced social isolation, more exercise and lowered blood pressure.

 Two studies show that dog ownership
provides significant health benefits
Photo credit: Airman 1st Class Isaiah J. Soliz

Tove Fall, a professor at Uppsala University, in Sweden, explains the striking results of a study following nearly 340,000 Swedes aged 40 to 85 after a stroke or heart attack. Heart-attack survivors who lived alone but owned a dog were a remarkable 33 percent less likely to die during the study period than similar patients without a dog. Dog-owning stroke patients living alone were 27 percent less likely to die. The life-extending benefits of dog ownership were somewhat less for people living with others, but still substantial.

"We know that social isolation is a strong risk factor for worse health outcomes and premature death. Previous studies have indicated that dog owners experience less social isolation and have more interaction with other people. Furthermore, keeping a dog is a good motivation for physical activity, which is an important factor in rehabilitation and mental health."

A separate piece of research melded together ten separate studies involving a total of 3.8 million people. This meta-analysis showed that dog owners were 24 percent less likely to die from any cause than non-dog owners. Dog ownership proved especially protective for people recovering from a heart attack--they experienced a huge 65 percent reduction in mortality risk.

The authors of these studies point out that these results don't prove a cause-and-effect relationship between owning a dog and a longer, healthier life. However, they clearly show a powerful correlation and add a new data-supported dimension to the old saw that dogs really are our best friends.

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REA









Sunday, May 20, 2018

CARDIAC FOUNTAIN OF YOUTH? EXERCISE 4 TO 5 TIMES A WEEK

Clearly, it's not for everyone, but new research shows that if you consistently exercise for 30 minutes or more four of five times per week, chances are your heart and major arteries will stay young and flexible as you age. While less frequent exercise still has many health benefits, it seems to take high frequency exercise to keep the biggest arteries in the body from stiffening with age.

 Cardio-box class; one form of heart-healthy exercise
Credit: Universidad Europea de Madrid

The new research, published in the Journal of Physiology, studied the lifelong exercise patterns of 102 men and women 60 years old or over. The researchers divided the participants into four groups--sedentary, casual exercisers, committed exercisers and master athletes, based on how frequently they had exercised over time. The results were clear--casual exercisers (two to three times per week) showed some heart and artery benefits, but it took four or more exercise sessions per week to be associated with preserved flexibility of the major vessels such as the carotid artery.

Human heart and major blood vessels
Credit: Bryan Brandenburg 

Of course, these cross-sectional findings alone can't pin down cause and effect, and the study was not designed to sort out other factors that might influence heart and arterial health, such as the type or intensity of exercise, diet or social and economic factors. However, they strongly suggest that consistent frequent exercise can help keep a person's heart and central arteries healthy and flexible into the later decades of life.

The researchers are using these preliminary findings as a guidepost towards exercise programs that could make a positive difference to people who don't have a lifelong history of frequent and consistent exercise. Benjamin Levine, at the Institute for Exercise and Environmental Medicine at the University of Texas in Dallas, hopes not just to preserve heart health, but to turn back the ravages of time. "Our current work is focusing on two years of training in middle aged men and women, with and without risk factors for heart diseases, to see if we can reverse the ageing of a heart and blood vessels by using the right amount of exercise at the right time."

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Wednesday, November 10, 2010

Good News for Chocolate Lovers -- Now We Know How Chocolate Protects the Heart

Research just published in the Journal of Cardiovascular Phamacology reveals one of the key ways in which chocolate or cocoa protects the human cardiovascular system. It turns out that pure cocoa and dark chocolate contain substantial amounts of an enzyme that inhibits ACE, which in turn has the effect of lowering blood pressure. The lead author says that this adds to the growing body of data showing that a diet rich in naturally occurring protective substances can help "prevent cardiovascular diseases."

More details about the study at Suite 101: http://www.suite101.com/content/news-for-chocolate-lovers--why-chocolate-protects-the-heart-a307018.

Robert Adler