Earth/Environment

Monsoons may have sped India's tectonic plate, plus saber-toothed reptiles and leaden bones in this week's news

Leaden bones may impair heart rhythms
A team of U.S. scientists finds that people with the most lead in their bones could be at elevated risk of developing perturbed electrical cycles in the heart, as measured by electrocardiograms. The body treats lead as it does calcium, storing much of the toxic metal in bones.