Warm people likely to keep cold at bay
[ 2006-11-20 09:03 ]
Staying positive could be the best defense against getting
ill in winter,a new study
Staying positive through the cold season could be
your best defense against getting ill, new study findings suggest.
In an experiment that exposed healthy volunteers to a cold or flu
virus, researchers found that people with a generally sunny disposition
were less likely to fall ill.
The findings, published in the journal Psychosomatic Medicine, build on
evidence that a "positive emotional style" can help ward off the common
cold and other illnesses.
Researchers believe the reasons may be both objective as in happiness
boosting immune function and subjective as in happy people being less
troubled by a scratchy throat or runny nose.
"People with a positive emotional style may have different immune
responses to the virus," explained lead study author Dr Sheldon Cohen of
Carnegie Mellon University in Pittsburgh. "And when they do get a cold,
they may interpret their illness as being less severe."
Cohen and his colleagues had found in a previous study that happier
people seemed less susceptible
to catching a cold, but some questions remained as to
whether the emotional trait itself had the effect.
For the new study, the researchers had 193 healthy adults complete
standard measures of personality traits, self-perceived health and
emotional "style." Those who tended to be happy, energetic and easy-going
were judged as having a positive emotional style, while those who were
often unhappy, tense and hostile had a negative style.
The researchers gave them nasal drops containing either a cold virus or
a particular flu virus. Over the next six days, the volunteers reported on
any aches, pains, sneezing or congestion they had, while the
researchers collected objective data, like daily mucus production. Cohen
and his colleagues found that based on objective measures of nasal woes,
happy people were less likely to develop a cold.
susceptible : easily
influenced or affected（易受影响的）