The writer is a science commentator
In the 1940s, as war spread in Europe and beyond, an American physiologist realised that starvation would surely follow but that little was known scientifically about its effects. Ancel Keys, a Minnesota University professor and consultant to the US War Department, seized the chance to fill in the gaps.
In 1944, together with the psychologist Josef Brozek, he recruited 36 healthy male volunteers willing to be observed, measured, questioned and assessed as they were first starved and then fed back to health. The Minnesota Starvation Study became a landmark investigation into how extreme food deprivation affects the human body, mind and spirit.