6. Mitochondrial Replacement Therapy: Preventing Inherited Disorders

Mitochondrial replacement therapy (MRT) represents a breakthrough in preventing the transmission of devastating inherited mitochondrial diseases. By replacing defective mitochondria in eggs or embryos with healthy ones from a donor, doctors can help families avoid passing on these disorders. Recent successes—such as the birth of healthy babies using MRT—highlight both its immense promise and the ethical debates it sparks. For a closer look at the science and ongoing discussions, visit Nature.