How many times should you shower each week? Or should we shower at all? The average changes depending on location and culture, ranging from 12 per week in Brazil to 5 per week in the UK.

We all know the obvious risks of not showering enough, but showering too much can also have it's downsides like overly dry skin and increased risk of infection. Luke explains how showering affects our body and why our bodies make things like sebum and sweat that we wash away.