The liver performs hundreds of vital functions, including converting nutrients from food into energy, filtering toxins from the blood, and producing bile, a key substance in digestion and waste ...

The overall quant rating is not an average of the factor grades listed. Instead, it gives greater weight to the metrics with the strongest predictive value.

Our physics expert picks his top-five equations, plus a scheme to supply US power needs with a bucket of baseballs. Thanks, Einstein!