Are modern humans too clean? New research into our skin suggests that we may be doing ourselves more harm than good when we soak in a soapy bath or take a shower twice a day.
The man who didn’t wash for half a century
Soapless case? Haji also smoked heavily and ate badly — porcupine was his favourite dish. Glossary
BO - Body odour.
Trillions - A trillion is a million million.
Microbes - Very small living things, also known as microorganisms.
Bacterium - A very small living organism, often made up of only one cell.
Dermatologist - A doctor specialising in skin.
Eczema - A group of skin conditions that causes dry and irritated skin.