The president's plans to impose steep tariffs on foreign steel and aluminum mirror the misguided trade policies that helped precipitate the Great Depression.

Nearly half of all teachers report having high levels of daily stress. Research shows that when teachers are stressed out, it can negatively affect students and schools.

McDonald's recently announced it will make its Happy Meal, which accounts of about 15 percent of all sales, healthier. Will it make kids healthier? That's unclear, but it could lower parents' guilt.

The demographics, which include declining numbers of adult children free to step up and potentially fewer immigrants, suggest that this big problem society faces will get bigger.

Our current politically turbulent times in the US are difficult – but not unusual. History shows that fragility is the norm. Get used to it. What is unusual are moments of calm.

Research shows they face greater obstacles to election than their male counterparts, thus work harder and represent constituents better.

Thousands of dirt roads crisscross the Brazilian Amazon, serving ranchers, loggers and miners. The area's fragile waterways — and the spectacular fish that live in them — pay a high price.

Venus flytrap plants have 'traps' that snap shut on insect prey. But they also rely on insects for pollination. New research suggests how the plant avoids eating its allies.