Regular Exercise Halves Your Chance of Catching a Cold  As if
you needed more motivation to exercise: A recent study conducted
by U.S. researchers found that people who exercise regularly are
about half as likely to catch the common cold.  Photo by Dr.
Hemmert.  What's more, those fit folks who do manage to find
themselves under the weather experience a less severe infection
than their unfit counterparts. It's all sounding good so far,
but, as the BBC reports, there is a small peculiarity (emphasis
ours):  For their study, US researchers 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.  The volunteers were also asked to say how frequently in
any given week they would do exercise lasting at least 20
minutes and intensive enough to break a sweat.  ...the most
significant factors that cut colds was how much exercise a
person did and how fit they perceived themselves to be.  So, in
reality, all you need to do is think