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Running with a cold: why you shouldn’t even think about it – trust me, I did and I felt a lot worse afterwards

Pavel Toropov had headaches, fever and night sweats, but didn’t want to waste months of training. He soon regretted his 50km race in Hong Kong. Others have suffered more after mistaking pneumonia for a cold. So what to do?

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If you have a cold, resist the temptation to run and take a few days off. You won’t lose fitness – so don’t worry. Photo: Alamy

For a week, I woke up to find my sheets soaked in sweat. During the day, the headache and fever were unpleasant, but not bad enough, I concluded, to waste months of training at altitude, and an invitation to join the MSIG Sai Kung 50km trail race in Hong Kong. I decided to run and “sweat the cold out”.

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On race day, adrenaline and excitement fizzled out quickly – soon followed by strength and energy. I dragged myself listlessly over the hills of Sai Kung, sweating profusely from humidity and fever, feeling sorry for myself, until the finish line.

“I dragged myself listlessly over the hills of Sai Kung, sweating profusely.” Photo: Alamy
“I dragged myself listlessly over the hills of Sai Kung, sweating profusely.” Photo: Alamy

The following day, the fever grew worse, and muscular cramps and spasms grew so severe that I was unable to lie down or sleep. A doctor said bluntly that to have gone running while aware of the symptoms was foolish.

Remaining highly active would likely only prolong your recovery or make the illness worse
Dr Dominic Teichmánn

Many runners suffer from fitness-loss anxiety – they fear they will gain weight if they do not run for two days, and that an irreversible decline in fitness will surely follow if they take more than a week off. Whether to allow this anxiety to drive you out of your front door despite the bodily discomfort and the nagging suspicions that you may do yourself more harm than good with a run is a million-dollar question. A Google search on “running with a cold” unleashes a mass of entries.

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