syzamix t1_j2evlqf wrote
Reply to comment by Lucius1213 in ELI5. Why is honey and lemon a popular cure for cold like symptoms. What makes lemon more effective than say an orange or lime? by alexkid_in_realworld
So, there are many studies that show that being cold makes you likely to catch cold.
There are double blind studies done with some people dipping their toes in cold water etc.
The hypothesis for reason is that the cold makes your immune system weaker temporarily especially in the nose. But that reason hasn't been proven. But the fact around feeling cold and catching cold is proven.
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