일 4시간 이상 TV 앞에 있으면 운동해도 소용없어 Watching television increases risk of death from heart disease

심장병 걸릴 위험 2배 증가 

출처 ktra.com

edited by kcontents 

케이콘텐츠 편집

하루에 4시간 이상 TV 앞에 앉아 있으면 운동효과를 전혀 볼 수 없는 것으로 나타났다.  TV 채널을 돌리고, 컴퓨터 게임이나 웹서핑으로 시간가는 줄 모르고 몇 시간씩 모니터 앞에 앉아 일하는 사람은 심장병에 걸릴 위험이 그렇지 않은 사람보다 두 배로 높아지고, 이렇게 잃은 건강은 운동으로도 만회할 수 없다는 것이다.  영국 유니버시티칼리지런던 연구팀은 성인 4500여명을 대상으로 매일 TV와 DVD 시청, 비디오 게임과 컴퓨터 사용에 보내는 시간이 얼마나 되는지 조사했다. 이중 약 4년 4개월 후 325명이 죽고 215명이 심장병에 걸렸다.  연구결과, 하루 4시간 이상씩 TV나 컴퓨터 앞에서 시간을 보낸 사람은 2시간 이하로 TV를 본 사람보다 사망 원인과 관계없이 사망 확률이 48% 높았고, 심장질환에 걸릴 확률은 125%나 더 높았다.  연구팀의 엠마누엘 스타마타키스 박사는 “운동은 연구 결과에 거의 영향을 주지 않는다”며 “매일 2시간 이상씩 운동하는 사람과 하루 2시간도 운동하지 않는 사람의 심장질환 발생 확률이 크게 다르지 않았다”고 말했다. 이런 내용은 미국 과학 전문사이트 라이브사이언스 등에 실렸다.  코메디닷컴 권순일 기자 (kstt77@kormedi.com)

Watching television increases risk of death from heart disease 

Couch potatoes and computer users face higher risk of death from heart disease, strokes and cancer, warn scientists 

Televsion addicts and people with a sedentary lifestyle face an increased risk of heart disease, warn scientists. Photograph: Wartenberg/Picture Press/Corbis 

Every hour spent watching television each day increases the risk of dying from heart disease by almost a fifth, say scientists.

Couch potatoes were warned that their lifestyle also increased the risk of death from other causes including cancer.

People who spent hours watching television greatly increased the chances of dying early from heart attacks and strokes, researchers in Australia found. Compared with those watching less than two hours of TV, people who sat in front of the box for more than four hours a day were 80% more likely to die for reasons linked to heart and artery disease.

The researchers monitored 8,800 adults for six years to see what impact watching television had on their long-term health. They found that each hour a day spent in front of the television increased the risk of death from all causes by 11%. It also raised the risk of dying from cancer by 9% and the risk of heart disease-related death by 18%.

The scientists warned it was not only telly addicts whose lifestyles put them in danger. Any prolonged sedentary behaviour, such as sitting at an office desk or in front of a computer, posed similar risks. It also made no difference whether or not a person was overweight or obese.

"Even if someone has a healthy body weight, sitting for long periods of time still has an unhealthy influence on their blood sugar and blood fats," said the study's lead researcher, Prof David Dunstan, from the Baker IDI Heart and Diabetes Institute in Victoria, Australia.

The average amount of TV people watch each day is three hours in Australia and the UK, said the scientists. In the US, where two-thirds of adults are overweight or obese, some people spent eight hours watching television ‑ the equivalent of a nine to five working day.

"What has happened is that a lot of the normal activities of daily living that involved standing up and moving the muscles in the body have been converted to sitting," said Dunstan.

"Technological, social, and economic changes mean that people don't move their muscles as much as they used to, and consequently the levels of energy expenditure as people go about their lives continue to shrink. For many people, on a daily basis they simply shift from one chair to another ‑ from the chair in the car to the chair in the office to the chair in front of the television."

The scientists interviewed 3,846 men and 4,954 women aged 25 and older who underwent sugar tolerance tests and provided blood samples. Participants were recruited from 1999 and studied for the next six years. Based on their own reports of TV viewing they were grouped according to whether they watched less than two hours a day, between two and four hours, or more than four hours.

During the follow-up period there were 284 deaths, 87 from cardiovascular, or heart and artery disease, and 125 from cancer.

While the association between cancer and television viewing was modest, there was a strong link between TV watching and a higher risk of cardiovascular death. This was despite taking account of recognised heart disease risk factors such as raised cholesterol levels and lifestyle.

The findings were reported today in Circulation: Journal of the American Heart Association.

Dunstan had this message for members of the public: "In addition to doing regular exercise, avoid sitting for prolonged periods and keep in mind to 'move more, more often'. Too much sitting is bad for health."

http://www.theguardian.com/science/2010/jan/11/watching-television-increases-death-heart-disease

edited by kcontents 

"from past to future"

데일리건설뉴스 construction news

콘페이퍼 conpaper

.