The Rolling Stones frontman reportedly trains six days a week, combining kickboxing, running, yoga and ballet, but doctors say consistency, gradual progression and recovery matter more than trying to copy his demanding routineSapir Gordo|For decades, Mick Jagger has raced across stages around the world with explosive energy, commanding charisma and the signature dance moves that became part of his legend.While many of his contemporaries have slowed down or retired entirely, the Rolling Stones frontman continues to perform for hours before tens of thousands of fans, displaying a level of fitness more commonly associated with much younger stars. His stamina has impressed not only music fans but also medical experts, who have tried to understand how he has maintained such physical vitality for so long.GalleryMick Jagger (Photo: Ariel Schalit/Getty Images)Even after turning 80, Jagger reportedly follows an intensive fitness routine that would exhaust many people several decades younger. He trains six days a week and combines kickboxing, running, yoga and classical ballet. But can the human body really withstand that level of exertion in its ninth decade?The first question raised by the sight of an 80-year-old sprinting across a stage is whether he possesses exceptional natural gifts or has simply followed an unusually disciplined routine. According to experts, the answer lies somewhere in between.“To achieve performances like these, you need what we call a multifactorial combination, with many elements working together,” said Dr. Eyal Ginesin, head of sports medicine and arthroscopy for Clalit Health Services’ Haifa and Western Galilee district and a senior physician at Carmel Medical Center. “These include environmental factors related to lifestyle that we can control, alongside genetic factors that provide the potential for success.”Prof. Abid Assali, director of cardiology at Meir Medical Center, also part of Clalit, said the combination produces the best results, but one factor stands out in Jagger’s case. “The central key is consistency,” he said. “Most people in their 80s simply do not maintain such a routine, and neither do many younger people who are busy with work and family.“Genetically, even an abnormality in the anatomy of the knees that causes pain can create a negative cycle. The more pain a person feels, the less activity they do.”Jagger’s training routine is not limited to demanding aerobic exercise designed to improve endurance and burn calories. It also requires a careful balance between strength and flexibility, while limiting potentially harmful strain on the joints and heart.Is training six days a week at that intensity dangerous for the heart or joints?