Alana Officer is leading the World Health Organization Decade of Ageing Well. With a background in podiatric medicine, exercise and public health she's worked on health, disability, rehabilitation and development in West and Central Africa, Europe, South Asia, the Middle East and the Western Pacific.

Lina Walker is Senior Vice President of Global Thought Leadership for AARP. (AARP was formerly known as the American Association of Retired Persons.) Her aim is to improve opportunities for increased longevity with healthier, financially resilient, and connected lives. An economist, Dr Walker also co-leads AARP’s health care strategy on advocacy, policy, education, and outreach.

Produced by Jane Thurlow

(Image: (L) Lina Walker, credit AARP. (R) Alana Officer, courtesy Alana Officer.)