Catalyst brings a mixture of Australian and international stories, from scientific breakthroughs investigating the implications, the ethics, and the politics of the particular issue, to stories about how scientists work in the field. In this DVD release, the Catalyst team present stories on Health & Wellbeing: Memory booster; Body clock; Hair regrowth; Trauma yoga; Alcohol; Vitamin D; Cheating sleep; Complex pain; Fertility decade; Womens libido; Better allergy testing; Weak at the knees; Caffeine challenge; Testosterone: Are you man enough?; Body hits: face value, body beautiful, sensory overload; and Pain Clinic: Part 1-3