Born: Quezon City ; June 10, 1943. Essayist. Her parents are Amado Capellan and Pacita Erum. She is married to Emmanuel Arriola Jr. with whom she has two daughters. She obtained her bachelor of arts in English and psychology from St. Theresa's College in 1963. She has worked as an interviewer for National Life Insurance Co, 1963-1965; account executive for Philippine Advertising Counselors, 1965-1969; research assistant for ICARP, 1973-1975; research associate of the Population Center Foundation, 1975-1980; and freelance copywriter, 1980-1984. Deeply involved in the Philippine feminist movement, she is a board member of Kababaihan sa Sining at Bagong Sibolna Kamalayan (KASIBULAN, Women in the Arts and Newly Emergent Consciousness) and secretary-general of TERESA MAKABAYAN, a group of Theresian alumnae active in social causes.
Arriola authorized Si Maria, Nena, Gabriela, Atbp., Kuwentong Kasaysayan ng Kababaihan (Maria, Nena, Gabriela, and Others, Historical Narrative of Women),1990, a publication of St. Scholastica's College Institute of Women's Studies and GABRIELA, an alliance of progressive women's organizations; and co-authorized History of the Burgis,1987, with Mariel N. Francisco. She edited Luksong Tinik (Leaping Game), 1992, a book on childrearing, and The Body Book, 1993.