The law of inertia states that objects at rest tend to stay at rest; objects in motion tend to stay in motion. The longer you are inactive, the harder it becomes to get active, and if fear or sadness ...

Adolescent depression remains a major public health concern, and Behavioral Activation (BA), a brief therapeutic intervention designed to reduce depression-related avoidance and boost engagement in ...

Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. “Activation” exercises ...