37.5 C
Wednesday, November 25, 2020

Sitting for more than 10 hours a day ‘ages your body by eight years’

Must Read

Tragedy: WA family ‘shattered’ by sudden deaths of toddler and grandmother

A family has been left ‘shattered’ after the deaths of a two-year-old boy and his grandmother in a horrific crash in Western Australia.A...

Southeast Qld: Total fire ban issued for six areas

Six areas in Qld have been slapped with total fire bans until Monday due to ‘challenging’ fire conditions including humidity down to 20...

SITTING for more than 10 hours a day means you are biologically eight years older, a study found.

Those who sat for extended periods and did little exercise had cells that were biologically older than those who moved around.

Researchers from California University in San Diego studied almost 1500 women aged 64 to 95.

They found those who remained seated for more than 10 hours and completed less than 40 minutes of moderate to physical activity a day were most affected.

These women had shorter telomeres — tiny protective caps found on the ends of DNA strands — that act like the plastic tips of shoelaces.

sitting 3

They guard against deterioration and progressively shorten and fray with age. Shortened telomeres are associated with cardiovascular disease, diabetes and major cancers.

Significantly, the shortening process can be accelerated by lifestyle factors such as obesity and smoking.

Study leader Aladdin Shadyab said people who spend long hours sat at desks or in chairs at home could mitigate some of the damage by exercising.

He added: “Our study found cells age faster with a sedentary lifestyle.

sitting 2

“Chronological age doesn’t always match biological age.

“We found that women who sat longer did not have shorter telomere length if they exercised for at least 30 minutes a day.

“Discussions about the benefits of exercise should start when we are young, and physical activity should continue to be part of our daily lives as we get older, even at 80 years old.”

National UK guidelines suggest adults should do at least 150 minutes of moderate intensity exercise or 75 minutes of vigorous intensity exercise each week.

Health chiefs suggest this can be achieved by doing 30 minutes of moderate intensity exercise five days a week.

They also advise: “All adults should minimise the amount of time spent being sedentary (sitting) for extended periods.”

sitting 4

Dr Shadyab said his research team is the first to objectively measure how the combination of sedentary time and exercise can impact the ageing of telomeres.

The participants completed questionnaires and wore an accelerometer on their right hip for seven consecutive days during waking and sleeping hours to track their movements.

The findings were published in the American Journal of Epidemiology.

Future studies will examine how exercise relates to telomere length in younger people and men.

Previous studies have suggested men who adopt a sedentary lifestyle may be less at risk of disease than women.

Online Source: News.com.au

Latest News

Coronavirus NSW: Restrictions to be eased before Christmas

NSW has announced 30 people will be allowed in one home from next week - but there’s a way you can get 50...

Will Pucovski: Australian coach says batting dynamo won’t replace Matthew Wade or Travis Head

Will Pucovski can “bat anywhere” in the Australian Test team, but Justin Langer says that doesn’t mean he gets in to play India.Australian...

Surf Life Saving Australia asks beachgoers to Adopt an Hour

Australian beachgoers are being asked to pay for every hour they spend at the beach this summer as part of a bold new...

Coronavirus SA: Woodville Pizza Bar worker breaks silence

The pizza shop worker whose lie led to South Australia’s unnecessary shutdown has broken his silence about the matter for the first time.The...

Victoria budget: New trams and enviro-friendly buses funded

Victorian commuters can enjoy a new fleet of Australian-made trams and planet-friendly buses under plans unveiled in the state budget.A new tram fleet...