Jesper Bengtson
Taking too much vitamin C can raise your kidney stone risk – here is how much is too much
Federal health authorities put a hard ceiling on daily vitamin C from food and supplements.
What your body goes through when you stop eating ultra-processed food
A tightly controlled NIH trial shows what starts to shift when packaged food leaves the plate.
What happens to your body in the days after you stop drinking coffee
The clinical timeline for quitting coffee is well-documented, and it isn't gentle.
Zone 2 training: why a slow, steady workout may be the best thing for your heart
The pace where you can still hold a conversation may do more for your heart than your hardest workout.
The overlooked sleep apnea pattern that may raise your heart attack risk by 30%
A large home-monitoring study points to a signal that one-night sleep tests routinely miss.
What’s a good mile run time for your age? Times sorted by age and sex
Widely used age-adjusted benchmarks show what counts as an excellent, good or average mile at every stage of adult life.