
Stronger muscles tied to longer life in older women
A study of 5,472 women aged 63–99 from the Women’s Health Initiative found that higher muscular strength, measured by grip strength and a 5-times-sit-to-stand test, independently predicted longer life over roughly eight years, even after adjusting for aerobic fitness and lifestyle, suggesting strength should be valued alongside cardio for healthy aging (though causation can’t be proved).

