The 100 Simple Secrets of Happy People Author:David Niven, Ph.D. What scientists have learned and how you can use it. Each of the 100 entries presented here is based on the research conclusions of scientists studying happiness and life satisfaction. Each entry contains a key research finding, complemented by advice and an example that follow from the finding. The research conclusions presented in each entry a... more »re based on a meta-analysis of research on happiness, which means that each conclusion is derived from the work of multiple researchers studying the same topic. To enable the reader to find further information on each topic, a reference to a supporting study is included in each entry, and a bibliography of recent work on happiness has also been provided.« less