Scientists uncover why colds spike when the temperature drops

Scientists say this finding offers the first biological evidence for why respiratory illnesses like colds, flu and Covid-19 are more likely to spike when the temperature drops.

More common during the winter months, scientists have uncovered the biological reason why colds are more prevalent in colder temperatures.

A study suggests the newly discovered immune response inside the nose is suppressed by colder temperatures, and the illnesses are not more common simply because people are stuck indoors.