Strength training is widely known for improving physical fitness but emerging evidence suggests its influence may extend far beyond muscles. A US-based physician has highlighted growing research that connects higher muscle mass with healthier brain ageing, offering a fresh perspective on why resistance training matters as we grow older.
Dr Kunal Sood, a Maryland-based specialist in anesthesiology and interventional pain medicine, recently explained that newer scientific studies are exploring how muscle development relates to brain health. While workouts are often associated with metabolism weight control and strength, researchers are now examining how they may also affect how the brain ages over time.
According to Dr Sood, one major study observed nearly 1200 healthy middle-aged adults. Researchers used MRI scans along with artificial intelligence models to calculate what is known as brain age. Brain age refers to how old the brain appears biologically rather than a person’s actual chronological age.
The findings revealed a notable trend. Individuals with higher muscle mass tended to show brains that appeared biologically younger on MRI scans. Dr Sood emphasized that this association was stronger than links involving body weight or body mass index alone. In other words muscle mass mattered more than the number on the scale.
He explained that muscle tissue plays a key metabolic role in the body. It helps regulate insulin sensitivity reduces chronic inflammation and supports healthy blood vessels. All of these factors are closely connected to long-term brain function and cognitive health.
The research also pointed to what may negatively affect brain ageing. Higher levels of visceral fat which surrounds internal organs were associated with brains that appeared older. Interestingly fat stored just under the skin did not show the same effect. This suggests that body composition rather than overall weight may be more important when it comes to protecting the brain.
Dr Sood cautioned that the research does not prove that building muscle can reverse brain ageing. However it does highlight muscle mass as a modifiable lifestyle factor that may support brain health over time especially as people age. Strength training could therefore play a meaningful role in maintaining both physical and cognitive well-being.