New research takes aim at heart’s ‘safe zone’

Backed by a $1.2 mil­lion grant from the National Insti­tutes of Health, physics pro­fessor Alain Karma is part of a research team studying how a par­tic­ular class of gene muta­tions in humans sig­nif­i­cantly increases the risk of sudden car­diac arrest by dis­turbing the heart’s elec­trical signaling.