Decades of research have shown that severely limiting calorie intake can lengthen an animal’s life span. But for yeast, consuming fewer calories doesn’t always mean a longer life, a new study suggests.
The study uses a new technique that can keep track of thousands of yeast cells at once. Caloric restriction’s famed life extension disappeared in the high-volume experiment. But other researchers who study aging say caloric restriction works as advertised; it’s the new method that’s flawed.