People who exercise regularly are less likely to get a cold. A study of 1,000 people found that regular activity cut the odds of catching a cold in half. If someone who exercised regularly did catch a cold, the symptoms were less severe.
This could be because exercise helps to bolster your immune system.
BBC News reports:
"... [R]esearchers asked the healthy volunteers to keep a record of any coughs and sniffles they experienced over a three-month period during the autumn and winter ...
People who were physically active on five or more days of the week were unwell with a cold for about five days of the three-month period, compared to nine days for those who did little or no exercise."