Grand Challenge for Healthy Longevity - National Academy of Medicine | National Academy of Medicine : By 2050, this percentage is projected to more than double, reaching 1.6 billion. The global population of the “oldest old” – people aged 80 and older – is expected to more than triple between 2015 and 2050, growing from 126 million to 447 million. At the current pace, population aging is poised to impose a significant strain on economies, health systems, and social structures worldwide. But it doesn’t have to.� We can envision, just on the horizon, an explosion of potential new medicines, treatments, technologies, and preventive and social strategies that could help transform the way we age and ensure better health, function, and productivity during a period of extended longevity. Now is the time to support the next breakthroughs in healthy longevity, so that all of us can benefit from the tremendous opportunities they have to offer. �