Watching TV for an average of six hours a day could shorten the viewer’s life expectancy by almost five years, indicates research published online in the British Journal of Sports Medicine.
The impact rivals that of other well known behavioural risk factors, such as smoking and lack of exercise, the study suggests.
Sedentary behaviour — as distinct from too little exercise — is associated with a higher risk of death, particularly from heart attack or stroke. Watching TV accounts for a substantial amount of sedentary activity, but its impact on life expectancy has not been assessed, say the authors….
- 15-minute exercise plan ‘healthy’ (bbc.co.uk)
- Daily exercise can extend your life by three years (mirror.co.uk)
- 5 Countries with the Highest Life Expectancy (5facts.org)
Study by McGill geography professor finds that as people age, the differnce in the health-related quality of life between rich and poor remains constant
“We can’t buy our way out of ageing,” says Nancy Ross, a McGill geography professor. “As we get older we start to have vision problems, maybe some hearing loss, maybe lose some mobility – ageing is a kind of a social equalizer.”
Ross is the lead author of a new study about how socio-economic and educational status affects Canadians’ health-related quality of life over the course of a lifetime.
“My research looks at how poverty and social disadvantage affect your health status. Our work was about using social circumstances as a lens to look at how people’s quality of life changes as they age.”
The good news, according to Ross, is that there is no sign of an accelerated ageing process for those who are lower on the social ladder. “The trajectories for declining health as people age look fairly similar across the social spectrum. That surprised me. I thought that there would be a bit more of a difference across social groups.”
But the bad news is that Canadians who are less educated and have a lower income start out less healthy than their wealthier and better-educated compatriots, and remain so over the course of their lives. “What we found, basically, is that people who are more educated and with higher incomes have a better health-related quality of life over their whole lifespan, and that these health “tracks” stay pretty parallel over time.
“The message there is that if you start out with a health-related quality of life deficit through early life experience and a poor educational background, it’s never made up for later on,” says Ross. “Poorer Canadians are in poorer health and they have lower life expectancy than their more affluent counterparts, and by age 20 the pattern for health-related quality of life as people age is already fixed.”
“We might speculate that universal health insurance and other social policies directed to adults and seniors have played a role in preventing accelerated decline in health-related quality of life of the poorer and less educated Canadians. That said, we would need some comparative research in other countries to test this more fully,” she adds. “But this study suggests the need for policies aimed at making sure kids and teens are given the chances early in life to even out socio-economic inequalities that will affect their health as they age.”
ScienceDaily (Mar. 12, 2011) — Cheer up. Stop worrying. Don’t work so hard. Good advice for a long life? As it turns out, no. In a groundbreaking study of personality as a predictor of longevity, University of California, Riverside researchers found just the opposite….
“We came to a new understanding about happiness and health,” said Martin, now a psychology professor at La Sierra University in Riverside. “One of the findings that really astounds people, including us, is that the Longevity Project participants who were the most cheerful and had the best sense of humor as kids lived shorter lives, on average, than those who were less cheerful and joking. It was the most prudent and persistent individuals who stayed healthiest and lived the longest.”
Part of the explanation lies in health behaviors — the cheerful, happy-go-lucky kids tended to take more risks with their health across the years, Friedman noted. While an optimistic approach can be helpful in a crisis, “we found that as a general life-orientation, too much of a sense that ‘everything will be just fine’ can be dangerous because it can lead one to be careless about things that are important to health and long life. Prudence and persistence, however, led to a lot of important benefits for many years. It turns out that happiness is not a root cause of good health. Instead, happiness and health go together because they have common roots.”…
…Friedman and Leslie R. Martin , a 1996 UCR alumna (Ph.D.) and staff researchers, have published those findings in “The Longevity Project: Surprising Discoveries for Health and Long Life from the Landmark Eight-Decade Study” (Hudson Street Press, March 2011).
Longevity Project Book Reviews