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Watching TV on the couch every hour increases stroke risk by 14%, study warns


As we get older, we naturally slow down, which often means retiring to the couch in front of the TV or with a book.

But every hour of sedentary activity every day in your 60s and 70s increases your risk of stroke by 14 percent, a study has warned.

People who barely moved for 13 hours or more of their waking day were 44 percent more likely to have a stroke than those who spent less than 11 hours sitting.

In contrast, it was found that just 25 minutes of moderate exercise, such as brisk walking or cycling, per day reduced the risk by more than 40 percent.

Past research has shown that being sedentary can lead to the formation of fatty material in your arteries, which in turn increases your risk of cardiovascular disease.

Physical activity helps reduce the risk of stroke by lowering cholesterol and blood pressure and reducing these fat deposits.

US researchers found that every hour spent sitting in your 60s increases the risk of stroke by 14 percent (stock image)

Experts from San Diego State University confirmed exercise tracking devices on 7,607 American men and women, with an average age of 63.

Participants were asked to wear a hip-mounted accelerometer, which tracked how much they moved and at what intensity for a week.


Over there There are two main types of stroke:

1. ischemic battle

An ischemic stroke — which accounts for 80 percent of strokes — occurs when there’s a blockage in a blood vessel that prevents blood from reaching part of the brain.


The more rare, a hemorrhagic stroke, occurs when a blood vessel bursts, flooding one part of the brain with too much blood while depriving other areas of adequate blood supply.

It can be the result of an AVM or arteriovenous malformation (an abnormal cluster of blood vessels) in the brain.

Thirty percent of patients with subarachnoid hemorrhage die before reaching the hospital. Another 25 percent die within 24 hours. And 40 percent of survivors die within a week.


Age, high blood pressure, smoking, obesity, sedentary lifestyle, diabetes, atrial fibrillation, family history, and a history of a previous stroke or TIA (a mini-stroke) are all risk factors for having a stroke.


  • Sudden numbness or weakness of the face, arm, or leg, especially on one side of the body
  • Sudden confusion, difficulty speaking or understanding
  • Sudden vision problems or blurred vision in one or both eyes
  • Sudden difficulty walking, dizziness, loss of balance or coordination
  • Sudden severe headache with no known cause


Of the roughly three in four people who survive a stroke, many will have a lifelong disability.

This includes difficulty walking, communicating, eating, and completing daily tasks or chores.


Both are potentially fatal and patients require surgery or a drug called tPA (tissue plasminogen activator) within three hours to save them.

They had to have it on and fastened for 16 hours during the day, but were allowed to take it off for eight hours at night while they were in bed.

The results were then used to calculate their average time per day that they were awake, sedentary, doing light physical activity, such as walking around the house, or more intense activity, such as cycling or brisk walking.

Sedentary was defined as sitting in a chair, lying on a couch, or even standing for long periods of time.

Researchers then analyzed their medical records seven years later, during which time 286 strokes were recorded.

Researchers found that people who sedent the most — who moved barely 13 hours or more a day — were at the highest risk of stroke.

They were 44 percent more likely to have a stroke within seven years compared to people who sat 11 hours or less a day.

The scientists calculated that for every extra hour spent sitting in a sitting position, the risk of stroke increased by 14 percent.

But the study’s lead author, Dr. Steven Hooker, said the finding also showed that the risk of stroke can be reduced with exercise.

Three and a half hours of light exercise per week was also found to reduce the risk of stroke by 26 percent, compared with exercising less than two hours a day.

Light exercise may include doing housework or walking around the house.

An even greater protective effect was recorded in people who engaged in more vigorous physical activity.

Those who did 14 or more minutes of moderate or vigorous exercise, such as brisk walking, cycling or even gardening, saw their risk drop by 47 percent, compared with people who did less than three minutes a day.

dr. Hooker said the optimal amount of moderate exercise for people over 60 was about 25 minutes a day, based on the data.

dr. Hooker noted that the study had some limitations, but the first was that the hip-mounted accelerometers didn’t record physical activity from the waist or the position people sat in.

Another limitation was that the accelerometers captured only a seven-day snapshot of a person’s activity levels, which could change over the follow-up period.

Finally, the authors acknowledged that their small sample size of strokes meant they did not do a separate analysis of the different types of strokes, ischemic and hemorrhagic.

An ischemic stroke — which accounts for 80 percent of strokes — occurs when there’s a blockage in a blood vessel that prevents blood from reaching part of the brain.

The team published their findings in the journal JAMA network opened

In contrast, a hemorrhagic stroke occurs when a blood vessel bursts, flooding one area of ​​the brain with too much blood, while depriving other areas of adequate blood supply.

Stroke is a leading worldwide cause of death and disability.

There are over 100,000 strokes in the UK each year, with 38,000 deaths. About 1.3 million people in the UK are stroke survivors.

In the US, more than 795,000 people suffer a stroke every year, 137,000 of whom die.

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