The common cold is caused by a virus, and they’re spread between people very easily, said the NHS.
A cold is spread by the germs from coughs and sneezes, and they can live on surfaces for up to 24 hours.
But you could lower your risk of becoming infected with a cold or the flu by taking certain supplements.
Ginseng supplements may help to protect against the viruses, scientists have claimed.
Ginseng can affect certain aspects of the immune system
University of California, Berkeley
Taking regular ginseng capsules could boost the immune system, which helps to prevent infection, according to the University of California, Berkeley.
Just two daily supplements throughout the winter may be enough to reduce your risk of a cold, they said.
But, once you’ve become infected, ginseng won’t help to relieve symptoms - that’s when you should speak to a pharmacist.
“A cure for the common cold has been a holy grail for medical researchers and drug companies,” said Berkeley.
“So far, however, nothing has worked. No wonder, then, that people are tempted by the cold-fighting and/or immunity-boosting claims made for many dietary supplements.
“Like echinacea, ginseng can affect certain aspects of the immune system, though it’s not clear what practical significance this has.
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