More on the Supposed Youth Pill
A new study helps the case for a supplement known as NR, but it’s not yet a slam dunk.
This Anti-Aging Injection Might Actually Work
Stem cells are overhyped as a cure for everything. But they’re finally showing promise in making elderly people stronger.
So Should I Eat Apples, or Not?
Two different microbiome tests give me conflicting dietary advice. Only one lets me verify the science behind it.
When a Double-Chocolate Brownie is Better for You Than Quinoa
A $299 microbiome test from DayTwo turns up some counterintuitive dietary advice.
What Are Your Genes Telling You to Eat?
Companies are using your DNA to customize a diet plan. If it works, it might not be for the reasons advertised.
What if Number 2 Makes You Number 1?
Elite athletes have a greater variety of bacteria in their guts than couch potatoes do, raising the prospect of “poop doping.”