Having productive conversations about climate change isn’t only challenging when dealing with skeptics, it can also be difficult for environmentalists, according to two new studies.

People generally think of stress and anxiety as negative concepts, but while both stress and anxiety can reach unhealthy levels, psychologists have long known that both are unavoidable — and that they often play a helpful, not harmful, role in our daily lives.

Injuries have overtaken infectious disease as the leading cause of death for children worldwide, and psychologists have the research needed to help predict and prevent deadly childhood mishaps.