mitochondria

In her new book, Dr. Casey Means argues that good metabolic function is key to preventing chronic disease. And she shares a prescription for boosting yours.

New data have confirmed major differences in mutation rates between the sexes — showing that children inherit more mutations from their dads than from their moms, says guest commentator Robert Martin.

In 2016, scientists combined the genes of three people in an effort to make a baby free of an inherited disease. But the process doesn't wipe out all faulty mitochondria, and could pose new risks.

Scientists have found the first eukaryotic organism that functions fine without mitochondria, the "powerhouses" that make energy for the cells of yeast, humans and other animals.