Heavy, prolonged or painful menstrual periods are associated with more days off school and scoring worse on compulsory exams in a UK study

A centuries-old maths problem asks what shape a circle traces out as it rolls along a line. The answer, dubbed a “cycloid”, turns out to have applications in a variety of scientific fields

With a bit of training, macaques can make rhythmic movements in time with music, an ability only shown before by a handful of animals

People who can run a mile in less than 4 minutes generally live almost five years longer than would otherwise be expected, challenging the idea that too much strenuous exercise is bad for the heart

Surprising recent measurements hint that the universe isn’t expanding in the way we had thought, and it could be explained by still-theoretical dark radiation

An analysis of a mathematical economic game suggests that even learning from past mistakes will almost never help us optimise our decision-making – with implications for our ability to make the biggest financial gains