We don't just inherit our appearance, the colour of our skin, hair or eyes but we also inherit manufacturing defects from our parents. Dr Shiv Kumar Sarin, author of own your body talks about genetic legacy and the importance of investing in one's body. Dr Shiv Kumar Sarin's book is a wake up call and a roadmap to good health. In an exclusive chat with NDTV's Divya Wadhwa he shares life saving tips.