(CNN) — An inexpensive polypill is probably one of the best ways to solve the world’s heart problems, prominent cardiologists say. Never heard of a polypill? You’re not alone. This approach to ...

While we can’t fix everything, there’s a fundamental truth that most large problems begin as small problems that, left unattended, grow or propagate. There are always plenty of problems to be solved.

Two multi-ethnic workers working in a plastics factory, standing on the factory floor, looking at the control panel of one of the machines. The African-American man is pointing to the panel. His ...