Jeannette Robinson

Three women at risk of developing Alzheimer's join a groundbreaking study to try to prevent the disease. The major study tracks the health and memory of thousands of people over many years, as researchers hunt for lifestyle changes and medicines that could improve all our chances and ultimately protect the brain and body from one of the world's deadliest diseases.

Join scientists on the most ambitious Arctic research expedition ever. Facing hungry polar bears, perilous sea ice cracks, and brutal cold, the team strives to understand the forces that are changing the region--and the world--forever.