Gravity Strikes Again

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!


  1. Sheps, S. (2016). Foot swelling during air travel: A concern?. Retrieved from

Smudge Cells

These are artifacts that occur in the blood smears of patients with chronic lymphocytic leukaemia. They happen because the cells are rather fragile.

Memory aids make life better.


Smudge cells are associated with CLL.


  1. LabCE. (2018). Smudge Cells. [online] Available at: [Accessed 11 Sep. 2018].