Connie St Louis continues her review of health and wellbeing in the early adult years. These should be the healthiest times of our lives, but they are also a period when decisions made about lifestyle and parenthood can have far reaching consequences. 3: Adult Minds. Mental illness such as depression and schizophrenia are most common in young adults. What is causing this epidemic? EMAIL: radioscience@bbc.co.uk Producer Jim Clarke Crazy about baby: page 39