Muscle Strength and Longevity: What Science Says

Muscle strength serves plenty of purposes. If it did not, nobody would devote so many hours in the gym to building it. At every point in life, strength lets us work faster than we could with less of it, and it even allows us to finish tasks that would be impossible without it. Beyond making life easier, your strength can also help forecast how long you will live. There are serious caveats to note when citing the research, yet it holds true that the same strength that has aided you all along can also be used to estimate your lifespan.

The main caveat in studies tying strength to longevity is that almost all of them focus on older adults, whose overall strength is judged by their grip. Grip strength is thought to be a dependable predictor of general muscle strength in older adults, though it admittedly relates little to lower limb strength. Also, because bigger people tend to have stronger grips and larger muscles overall, grip strength can be distorted by participants’ total body size. Even with all that in mind, studies have clearly identified grip strength as a solid standalone biomarker, with predictable ties between a stronger grip and several positive outcomes. So while the research is not linking push-up totals to all-cause mortality, the data indicates your efforts to raise strength can be reliably captured by your grip.

Across dozens of studies with millions of participants, grip strength was firmly shown to predict all-cause mortality and cardiovascular disease. In a meta-analysis of 42 studies with over three million participants, those with weaker hand grips had hazard ratio scores of 1.41 for all-cause mortality and 1.63 for cardiovascular disease. To interpret, these scores mean higher chances of death from these causes of 41 percent and 63 percent respectively, compared with people who had stronger grips. In practice, this suggests a strong connection between a person’s muscle strength and their body’s ability to sustain life, or their vulnerability to events that might cause death.

First, muscle strength is generally a dependable predictor of muscle mass. Ideally, your muscle mass will come with a matching amount of strength, meaning you will be as strong as you look when it matters. Even if the strength from your muscle mass is lower than expected, your muscle tissue would still aid blood sugar regulation and lower type 2 diabetes risk, serve as a protein store for emergency energy and wound healing, and support bone health. Second, muscle strength helps steady your body and reduces your chance of falling. For older adults, this is critical. Over 20 percent of older adults die within a year of a hip fracture even if it is surgically repaired, and 70 percent die if it is left untreated. That is only one of many terrible injuries a fall can cause. Muscle strength also stops falls by improving posture and balance and greatly raising the odds of recovering from a loss of balance. What is more, muscle strength and mass help cushion and shield your body if a fall does occur. If you become ill, greater general strength can help your body produce more effective coughs that clear the airways better. Stronger muscles also support better blood flow, making oxygen delivery to organs and tissues more efficient, especially while fighting sickness.

When reading this information, sensible judgment is required, or you may conclude that training your grip directly is the single most important exercise for extending life. Again, grip strength stands in for total body strength, so you must train your whole body for grip strength to accurately mirror your overall muscle makeup. For muscle growth to meaningfully improve your health and preserve your life, your best approach is to train from head to toe, mainly with compound lifts such as squats, deadlifts, bench press, and pull-ups that load the largest muscles through a full range of motion. You should also back muscle growth with the performance and recovery support that only smart dietary choices can deliver. In practice, that means eating enough protein to drive muscle protein synthesis and pairing it with a supplement like creatine HMB to protect muscle tissue and boost your muscles’ energy stores.

If you plan to live a long life and enjoy your time as much as possible, taking steps to build and keep your muscles healthy is among the wisest investments you can make. Seen this way, every workout you commit to may be a deposit in the account holding the days you have left, and the minor discomfort of each resistance session is sparing you from far greater discomfort later. Muscle strength has been conclusively shown to indicate longevity. Dozens of studies with millions of people have linked stronger muscles to a lower risk of all-cause mortality and cardiovascular disease. Muscle strength is a reasonable predictor of muscle tissue, which helps regulate blood sugar, heal wounds, and support bones. Strong muscles help steady the body, sharply cutting the chance of devastating falls and improving the odds of recovery if one happens. Raising muscle strength also improves blood flow and oxygen efficiency when your body must fight disease or illness. To effectively boost strength, train your entire body instead of focusing on grip strength, which these studies use as a stand-in for total body strength.