Maybe we can’t actually extend the lifespans of mice?

This is a very provocative analysis. Are there implications for aging science? “Let’s start with calorie restriction, shall we? Everyone knows that it slows aging, isn’t it? Well, not really. Take a look at the chart below… Each bar represents a genetically distinct strain of mice. A bar above 0 indicates that CR resulted in lifespan extension, and below 0 indicates lifespan shortening. As you can see, the effect was negative for more than half of the strains.” ~ learn more