A new relative fat mass (RFM) equation based on height-to-waist-circumference ratio better predicts the percentage of whole-body fat in men and women than body mass index (BMI), new research indicates ...

The terms weight and mass are often used incorrectly. Phrases like ‘a bag of sugar weighs 1 kg’ are not scientifically correct. This means that a 1 kg mass would be attracted to Earth by a force of 10 ...