Experts weigh in on whether cold water swimming, drinking kombucha and taking vitamins can boost your immune system.

The study identifies gut microbiome alterations in allergic rhinitis, suggesting a gut-nose axis that could inform new treatment approaches for this condition.

Canadians who avoid the flu shot because they fear needles have an alternative that won’t make them hold their breath until ...

We investigate whether cold and flu nose sprays such as Vicks First Defence can help fight off common winter bugs ...

Get our tips on the cold and flu products you do and don't need, plus cheaper swaps for popular branded remedies ...

Data suggest 91% of us discreetly engage in this unalluring habit. A scientist explains the surprising dangers that a recent ...