Discover which fitness metrics matter most for meaningful progress. Learn how expert assessment of posture, mobility, ...

This paper discusses a fundamental problem in measuring the growth of knowledge and comparing the skills of people. New skills emerge that are not just more of the previously acquired skills.

Body mass index, or BMI, has long been criticized as a flawed method for measuring obesity — and now a group of experts is sharing new recommendations. BMI is a formula that uses a person's height and ...

Allie has been Lifehacker’s Food Writer since 2021. She earned her bachelor’s degree at Ithaca College in drama and studied at the Institute of Culinary Education to earn her diploma in Pastry and ...