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"Generally, our immune systems are able to protect our cells from viruses," said Hinestroza. "However, these mechanisms are only effective when we’re at a core body temperature of 98.6 degrees. A recent study showed that cold weather could alter airway cells, inhibiting their ability to mount a natural immune reaction against the common cold agents. Therefore, our grandmothers were right when they told us to cover our heads and mouths to prevent catching a cold."
However, the flu is another story. One misconception is that people can catch the flu simply by going outside without a coat. "The only way to get the flu is through exposure to the influenza virus," said Hinestroza. "Although, I wouldn’t be surprised if a future study revealed that our defenses against the flu could also be temperature dependent. That's why I still recommend oatmeal for breakfast and non-caffeinated fluids like ginger lemon tea to warm the body and start the day."
Hinestroza also wanted to remind parents that an active child is a healthy child, especially as they transition out of colder months. "Minimize screen exposure to less than three hours a day and encourage your child to exercise regularly," he said. "Children should also be sleeping 9-11 hours daily to ward off viral invaders."
For the general population, Vitamin C can be a useful vitamin to ward of seasonal colds. "While it won't necessarily prevent contraction, taking supplements before the onset of a cold may shorten the duration of symptoms," said Hinestroza.
When it comes to reducing the catch or spread of viruses, Hinestroza recommended a simple, tried and true method: hand washing with soap. "This is especially important for young children, because they don’t tend to wash their hands on their own," he said. "Introducing good hygiene practices can be a powerful way of protecting both kids and communities."
