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Being active 'lowers cold threat'
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PostPosted: Wed Nov 03, 2010 10:00 am 

Joined: Tue Mar 10, 2009 1:21 pm
Posts: 1457
Location: Hampshire
Being physically fit and active lowers the risk of catching a cold, according to new research.

A study has found that if people who are fit do get a cold, it will not be as severe and they will be rid of the symptoms quicker than those who are less fit.

The seriousness of the common cold symptoms were reduced by 41% amongst people who are the fittest and by 31% amongst those who are the most active, research published online in the British Journal of Sports Medicine suggests.

People who only exercised one day of the week or less often saw the symptoms last twice as long as people who were physically active on five or more days of the week.

The researchers from North Carolina in the United States said bouts of exercise spark a temporary rise in immune system cells circulating around the body.

Although these levels reduce again within a few hours, each bout of exercise is likely to enhance the body's surveillance of harmful viruses and bacteria which reduces the number and severity of infections, such as the common cold, they said.

They studied 1,000 adults up to the age of 85 whose health was tracked for a 12-week period during the autumn and winter of 2008.

They examined how much aerobic exercise each participant did and rated their fitness levels.

They were also asked about other aspects that can affect the immune system such as lifestyle, diet and recent stressful events.


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