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Hyperarousal peaks in the morning for insomniacs

A recent study published in the Journal of Psychiatric Research suggests that people with insomnia experience heightened levels of hyperarousal—a state of persistent tension or restlessness—compared to those without sleep difficulties, especially in the morning. This arousal was also found…

A how-to for ethical geoengineering research

Over the Northern Hemisphere’s summer, the world’s temperatures hovered near 1.5° C above pre-industrial temperatures, and the catastrophic weather events that ensued provided a preview of what might be expected to be the new normal before mid-century. And the warming…

Are Boeing’s problems beyond fixable?

As Boeing’s latest chief executive, Kelly Ortberg’s job was never going to be easy. On Wednesday, it got harder still. That morning, Ortberg had faced investors for the first time, telling them that ending a debilitating strike by Boeing’s largest…