Recently in my physics lab, students were having trouble with the difference between mass and weight. I had ready answers---it’s a topic I’ve gone over hundreds of times. But after I explained that ...

Studying the determinants and the long-term consequences of fetal adipose accretion requires accurate assessment of neonatal body composition. In large epidemiological studies, in-depth body ...

The gold standard for categorisation of weight status is clinically measured body mass index (BMI), but this is often not practical in large epidemiological studies. Interviewers administered the main ...

Add Yahoo as a preferred source to see more of our stories on Google. Is BMI the best way to assess weight and health? (Photo illustration: Jack Forbes/Yahoo Life; photos: Getty Images) (Photo: Getty ...

Precision can be defined as the closeness in agreement of results during a series of repeat measurements under presumed identical conditions. These results are often expressed as a standard deviation.