Just 7 days of strength training may shrink fat cells, reveals this study

For years the world of fitness enthusiasts has lived by a simple rule: lift weights to build muscle and do cardio to burn fat. But a new study may change this age-old notion by revealing something remarkable! However, a new study from Brazil is quietly changing that belief, as the study emphasized the fact that strength training alone can begin to change tissue at the cellular level in just one week, even before the scale shows any difference at all.