Why do your feet swell during aeroplane flights? It’s not sudden-onset elephantiasis (probably).
Instead, it’s due to blood pooling in your veins. (As blood tends to do when stationary, thanks to gravity.)
Yes, gravity strikes again!
- Sheps, S. (2016). Foot swelling during air travel: A concern?. Retrieved from https://www.mayoclinic.org/foot-swelling/expert-answers/faq-20057828