Yawning has mystified researchers, and the list of reasons why we might do it can be exhausting. Some people claim that yawning when you’re nervous is your body’s way of catching your breath, preventing hyperventilation, and regulating your breathing, similar to deep breathing during meditation. But technically, yawning isn’t a respiratory function.
The World Health Organisation has classified stress as the “health epidemic of the 21st century.” Research shows that chronic stress is an epidemic for all genders and ages, particularly those who are 25 to 35 years old. … It’s the stress that can both cause medical conditions and trigger and exacerbate flare-ups from existing conditions.
Everyone can get scared. Fear is an unavoidable facet of the human experience. People generally consider fear as an unpleasant emotion, but some go out of their way to trigger it — such as by jumping out of planes, riding rollercoasters or watching scary movies.