Regular strength training enhances muscle mass through a process called hypertrophy, where muscle fibers increase in size as a response to resistance. This leads to improved strength, endurance, and overall functional capacity. Over time, consistent training can also boost metabolic rate, aiding in fat loss and body composition. Additionally, strength training promotes bone mineral density and supports joint health, reducing injury risks. Integrating strength exercises into a balanced regimen is essential for maintaining lean mass, especially as one ages.