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A new analysis of more than 18,000 adults parses exercise by domain—and finds the clock-slowing benefits aren't distributed evenly. Sweat on your own time appears to matter more than sweat on the job.
Researchers just built the first contemporary serum-magnesium reference intervals for Americans since the Nixon era. Here is what that quietly changes about your lab results — and your supplement habit.
A new analysis of 5,654 American adults links a protein called Klotho to how fast our bodies are actually aging — and it's the kind of signal that nudges Klotho out of the lab and toward your next bloodwork panel.