Massey later studied at the University of London, Institute of Education, gaining a Master of Arts degree in 1985.

[4] She was introduced on 1 November 1999 to the House of Lords[5] where she served as a member of the All-Party Parliamentary Group for Integrated and Complementary Healthcare.

[8] On 28 January 2019 Massey was the only person to remove her name from an open letter published in The Guardian opposing the "US attempt at regime change" in Venezuela.

The letter was signed by Shadow Ministers, MPs, union leaders, Labour Party NEC members, cultural figures, academics, anti-war campaigners and others.

[14] Baroness Massey died following a long illness with cancer at a hospice in North Chailey, near Haywards Heath, on 20 April 2024.