It took several years of further experiments and analysis, but During and his colleagues ultimately concluded that the mild stress of all that activity and interaction activated a communication channel that prompts fat cells to stop releasing a hormone called leptin, which accelerates cancer growth.

VOA: standard.2010.07.14

With third-quarter economic growth the strongest in 19 years, Collins believes small- and mid-cap growth stocks (which have traditionally outperformed large caps as the economy accelerates) will continue to lead the market higher.

FORBES: Jim Collins: Sweet Spot Growth Stocks