A new study predicts that the number of annual new dementia diagnoses in the US will double by 2060, rising from approximately 514,000 in 2020 to about one million. The research, coordinated by the Johns Hopkins Bloomberg School of Public Health, analyzed data collected over three decades and found that more than 40% of people aged 55 and older will develop dementia during their lifetime. Women face a higher risk than men, and racial disparities were also evident in the findings. Key preventive strategies include controlling blood pressure, managing diabetes, maintaining cardiovascular health, protecting against brain injuries, and addressing hearing loss.