Even after becoming Professor Emeritus at Harvard, Skinner remained highly active, continuing to write, lecture, and participate in conferences. He remained a vocal advocate for behaviorism and its applications.

Skinner turned his attention to the topic of aging, applying behavioral principles to address challenges and opportunities associated with later life. He published 'Enjoy Old Age' in 1983, offering practical advice on how to maintain a fulfilling and productive life in old age.

Skinner was diagnosed with leukemia. Despite his illness, he continued to work and defend his ideas.

Just eight days before his death, Skinner delivered a passionate address at the American Psychological Association (APA) convention, where he accepted the Citation for Outstanding Lifetime Contribution to Psychology. He used this platform to reiterate his commitment to behaviorism and its potential to solve human problems. This was a moving and memorable event for many in the field.

B. F. Skinner passed away from leukemia in Cambridge, Massachusetts, at the age of 86. His death marked the end of an era in psychology, but his ideas continue to influence research and practice in a wide range of fields.