Dr. Gerald Kierzek, in a recent broadcast on ICI on October 2, 2026, talked about ways to keep the brain active after retirement. He mentioned that doing regular mental exercises can help keep the brain engaged, though he pointed out that these activities do not guarantee complete protection against Alzheimer's disease, a condition that affects memory and thinking. Dr. Kierzek noted that retirement often removes some of the mental challenges people face in their jobs, such as attending meetings or solving work-related problems. However, he said this does not automatically lead to memory loss. He suggested that staying mentally active, much like staying physically fit, can help keep the brain healthy. These ideas match the World Health Organization's advice for reducing the risk of cognitive decline and dementia. The organization recommends a range of activities, including mental and social engagement, as part of a broader strategy to support brain health. Other resources, such as those from Doctissimo, a website that provides health-related information, offer guidance on how to improve memory after retirement without making the activities feel like chores. Dr. Kierzek proposed a simple guideline: 30 minutes of cognitive training three times a week. He made it clear that this is not an official medical recommendation but a practical suggestion to help people remember to stay mentally active. Activities that fit this guideline include reading a passage and then summarizing its key points or playing games like sudoku, a number puzzle that challenges problem-solving skills. He encouraged retirees to find activities they enjoy and can do regularly, emphasizing that the goal is to keep the brain engaged in a way that feels natural and rewarding. By doing so, individuals can maintain their cognitive health and continue to enjoy a fulfilling life after retirement.