The first study to assess how weight-loss drugs affect the whole of human health has discovered an "eye-opening" impact on the body, researchers say. The analysis, involving about two million people,

A new study highlighted Monday the potential benefits of popular diabetes drugs on a wide range of health issues including dementia and cardiovascular diseases, although experts warned against seeing them as miracle drugs.

The findings, based on an analysis of records from 2.5 million VA patients, support much of what scientists already suspected but contain surprises, too.