Spending
long periods sitting down and having low levels of physical activity may be
associated with an increased risk of cancer. However, even small changes to
daily routines may help reduce this risk.
According
to a medical study conducted in the United Kingdom, reducing daily sitting time
by just 15 minutes and replacing it with any form of light physical activity
could lower the risk of developing cancer by up to 2%. Researchers at
University College London analyzed data from more than 59,000 people. The
participants had an average age of 61, and their daily physical activity and
sitting time were monitored using electronic wrist-worn devices.
The
researchers followed the participants’ health for approximately eight years.
During this period, 2,385 cases of cancer were recorded among the participants.
Experts then used various analytical methods to examine the relationship
between physical activity, sitting time, and cancer risk.
The
findings showed that increasing physical activity and reducing the amount of
time spent sitting were generally associated with a lower risk of cancer.
According to the researchers, even small changes to daily routines can have
positive health effects, particularly for people who spend long periods
sitting. The researchers said that
reducing normal sitting time by 15 minutes and replacing it with physical
activity could reduce the risk of developing cancer by up to 2%. Meanwhile,
reducing sitting time by 30 minutes was associated with a potential reduction
in cancer risk of up to 8%.
Experts
said that people do not necessarily need to begin a formal or intense exercise
routine to achieve these benefits. Increasing everyday physical activity can
also be helpful. Activities such as walking to buy groceries, walking short
distances instead of using a vehicle, or taking the stairs instead of an
elevator can all contribute to increased physical activity.
The
study also found that people who were more physically active had a relatively
lower risk of developing certain types of cancer. Previous research has
likewise linked physical activity with a lower risk of several types of cancer,
including cancers of the bladder, breast, bowel, kidney, and stomach. The
researchers said the findings are particularly important for people who spend a
large part of their day sitting, as even a modest reduction in sitting time can
provide an opportunity to increase physical activity.