Gregorevic, Kate: - Dr. Kate Gregorevic is a geriatrician working at a hospital in Melbourne, Australia, and the author of Staying Alive: The Science of Living Happier, Healthier and Longer. She has clinical experience looking after people in all stages of dementia and is endlessly fascinated by the ways that physical health intersects with social and emotional heath. Kate has also completed a PhD examining the impact of positive psychosocial factors on physical frailty in older adults.