For better focus, less jitteriness and improved gut health, try green tea -- a lower-caffeine alternative to coffee.

You are free to share (copy and redistribute) this article in any medium or format and to adapt (remix, transform, and build upon) the material for any purpose, even commercially within the parameters ...

The P/B ratio shows how a stock's market price compares to its book value. It helps gauge whether a stock is undervalued or overvalued relative to its net assets.

Key Laboratory of Pesticide and Chemical Biology of Ministry of Education, Institute of Applied and Environmental Chemistry, College of Chemistry, Central China Normal University, Wuhan 430079, P. R.