News — Immunity

The culprit isn’t just “cold weather.” It’s a mix of biology, behavior, and plain bad timing. The good news? You don’t have to be another casualty of cold-and-flu season.

 People who get less sleep are more likely to catch a cold, but it turns out that these individuals also experience more systemic inflammation[6]. Though it's not proven exactly why reduced sleep causes inflammation, scientists believe that a lack of sleep triggers excess pro-inflammatory signals in our blood vessels

Pollen, for instance, is a common trigger for hay fever. Different plants release their pollen at different times throughout the year, depending on factors like temperature and daylight duration. So, when spring arrives and flowers burst into bloom, they unleash

If you’ve ever wondered why, you always seem to feel incredible at the end of a hike, no matter how exhausting the hike might be, there is a scientific explanation for it, and it’s not just exercise-related.