In this special edition of the Familia Podcast we commemorate the 40th anniversary of Humanae Vitae with part one of a two part interview about contraception with Dr. Chris Pemberton. Chris holds a Ph.D. in Endocrinology, and he works as a biomedical researcher for the Christchurch School of Medicine, and in this interview he discusses the medical facts and social implications of the advent of the contraceptive pill.