Midlife Exercise Reduces Early Death Risk in Women by 50%, Study Finds

Staying physically active during midlife significantly improves health and longevity, particularly for women. A new study highlights that midlife exercise can reduce women’s risk of early death by 50%. Women often experience muscle mass loss starting in midlife, which can negatively impact health. However, adequate exercise and sufficient protein intake help preserve muscle mass and overall well-being.

The World Health Organization (WHO) recommends at least 150 minutes of moderate-intensity exercise per week. Experts advise starting slowly and gradually building up to this level if you’re new to exercise. New research underscores the critical role of staying active for women throughout middle age and beyond.

Study Findings: Exercise and Longevity in Midlife Women

The findings, published on March 26 in PLOS Medicine, demonstrate that women who consistently followed physical activity guidelines in their 50s and 60s had a significantly lower risk of premature death. While the health benefits of regular exercise are well-documented, this study emphasizes its importance for aging women. The key takeaway: maintaining physical activity can substantially impact longevity.

Research Methodology and Key Insights

The study tracked over 11,000 Australian women born between 1946 and 1951 for 15 years, examining their physical activity habits and health outcomes. Unlike studies relying on a single snapshot of activity, researchers checked in every three years to monitor changes in participants’ exercise routines. This long-term approach allowed for a comparison between women who consistently met WHO’s moderate-to-vigorous physical activity recommendations—such as brisk walking, swimming, or tennis—and those who did not.

To ensure reliability, researchers used a method called “target trial emulation”, which mimics a controlled experiment using observational data. They also accounted for factors like age, smoking, diet, and body weight to isolate the impact of physical activity on health outcomes. Activity data was collected via surveys, where participants reported weekly time spent walking, doing moderate exercise, or engaging in vigorous activities. The study focused on whether women met the WHO’s guideline of at least 150 minutes of moderate-to-vigorous activity per week. While strength training data was not included, the study provided a clear picture of long-term aerobic activity trends.

Exercise Cuts Death Risk by Half in Midlife Women

Women who maintained recommended activity levels through their 50s and 60s were roughly 50% less likely to die prematurely compared to those who did not meet the guidelines. This protective effect applied to deaths from any cause, highlighting physical activity as a powerful contributor to better health and longevity.

When analyzing specific causes of death, such as heart disease and cancer, the results also suggested a protective trend, though the evidence was less certain due to fewer cases. This indicates that while the strongest evidence supports overall mortality reduction, exercise may also benefit specific health outcomes.

The takeaway? Remaining physically active can make a real difference in longevity for women during midlife and beyond.