How does a person age? How do you determine whether a person is old?   As the society and medical technology progress, human life expectancy lengthens.   This series focuses on seniors, and explores how ageing affects their bodily functions, skin, eyesight, digestive system, sex ability, memory, hearing, and psychological self. In addition, this series aims to provide scientific explanations for issues that have arisen or may arise in one’s body, and to educate the viewers about the ageing process.   Ageing is not a phenomenon unique to seniors, everone ages upon birth. The problems that we see seniors face today, may one day happen to us. If we understand the issues, prepare for them, and take care of ourselves, we can be genki. This programme will be transmitted in TVB Pearl at 13:00-13:30 every Saturday, commencing 12 January 2013.