A new study published in Nature Materials suggests that heart ageing may be reversible by targeting the heart’s extracellular matrix (ECM)—the supportive environment around heart cells—rather than the cells themselves. Researchers found that altering this environment can restore older heart cells to a more youthful state. While clinical treatments are still in development, the study highlights five proven lifestyle habits that can help slow heart ageing: regular exercise, quality sleep, avoiding tobacco and excess alcohol, managing stress, and following a heart-healthy diet.