LGBT ageing addresses issues and concerns related to ageing and minority sexualities or gender identities. Older LGBT* people are marginalised by: a) younger LGBT people, because of ageism and age discrimination; and b) by older age social networks because of heteronormativity (the assumption that heterosexuality is the norm), heterosexism (the privileging of heterosexuality), biphobia, homophobia and transphobia (prejudice and discrimination towards LGBT people).