Strength training may help you live longer, according to a large new study – though the data shows that changes in mortality risk depend on how much time you invest in it. Putting in 90–119 minutes per week was the sweet spot identified by the study, associated with a 13 percent reduction in the likelihood of dying from any cause over a period of up to 30 years. More was not necessarily better; no further reduction in mortality risk was shown in the stats for 120 minutes or more per week. Researchers led by a team from the Harvard T.H. Chan School of Public Health analyzed data from 147,374 people across three long-running prospective cohorts: the Health Professionals Follow-up Study, the Nurses' Health Study, and the Nurses' Health Study II. Aerobic exercise mattered too. The lowest mortality risk was observed among people who combined regular strength training with substantial aerobic activity. The study team says the findings answer some important questions specifically about strength (resistance) training. Personally, I think this is fascinating because it challenges the common misconception that more is always better. In my opinion, the study's findings suggest that there's an optimal amount of strength training for longevity, and going beyond that may not provide additional benefits. What makes this particularly fascinating is the idea that we can optimize our health and longevity through a balanced approach to exercise. The study's findings also highlight the importance of aerobic exercise. From my perspective, it's intriguing that aerobic activity confers greater benefits than strength training alone. This raises a deeper question: how do we strike the right balance between the two types of exercise to maximize our health and longevity? One thing that immediately stands out is the significant impact of strength training on mortality risk. The study found that those who engaged in 90-119 minutes of strength training per week had a 13% lower risk of dying from any cause. This is a substantial reduction, and it suggests that strength training is a powerful tool for extending our lifespan. What many people don't realize is that the study's findings also extend to specific causes of death. Those who engaged in 90-119 minutes of strength training per week were 19% less likely to die of cardiovascular disease and 27% less likely to die from neurological disease. This is a remarkable finding, as it highlights the broad-ranging benefits of strength training. If you take a step back and think about it, it's clear that strength training has a profound impact on our overall health and longevity. The study's findings are particularly interesting when considered in the context of aerobic exercise. The study found that those who logged at least 45 MET-hours of aerobic activity a week had a 42-47% lower risk of dying, regardless of how much strength training they did. This suggests that aerobic exercise is a powerful complement to strength training, and that a combination of the two is even more beneficial. What this really suggests is that we need to think about exercise as a holistic approach to health and longevity. By combining strength training and aerobic exercise, we can achieve a synergistic effect that maximizes our lifespan. The study's findings also have important implications for public health and fitness recommendations. Around one to two hours of strength training per week may be enough to see meaningful benefits, and blending strength training with aerobic training seems to be the best way of making sure you live longer. This is a crucial message, as it challenges the notion that more exercise is always better. Instead, it suggests that we should focus on finding the right balance between different types of exercise to optimize our health and longevity. The researchers are keen to extend their analysis to look at how exercise types might influence quality of life as well as healthspan: how long people remain healthy, mobile, and independent. This is a fascinating direction for future research, as it could provide valuable insights into the quality of life that we can expect as we age. In conclusion, the study's findings highlight the importance of strength training for longevity. By engaging in 90-119 minutes of strength training per week, we can significantly reduce our risk of dying from various causes. However, it's also crucial to incorporate aerobic exercise into our routines to maximize the benefits. This balanced approach to exercise is key to achieving a longer, healthier life. The researchers' findings challenge the notion that more is always better and emphasize the importance of finding the right balance between different types of exercise. This is a thought-provoking study that has important implications for our understanding of health and longevity.
