The years between 65 and 75 are often treated as the beginning of inevitable decline. They should be understood differently: as a period when maintaining strength, cardiovascular health, cognitive function, and social connection can have an outsized effect on independence later in life.
There is no universal biological switch that flips at 65. People age at markedly different rates, and many remain healthy and capable well beyond their 70s. Yet several changes often converge during this period. Muscle becomes harder to maintain. Chronic conditions become more common. Retirement may alter daily structure and social contact. Hearing or vision problems may emerge. Years of elevated blood pressure, poor sleep, or physical inactivity may begin to have visible consequences.
None of this makes decline unavoidable. It makes prevention more urgent.
