To understand how we classify and differentiate the stars we see in the sky, we first need to understand how they are born and change throughout their lives. Star formation begins with a massive cloud ...

A stressor is any event, situation, or external stimulus that causes a stress response in the body. Common types of stressors include financial, social, and occupational stressors, or those due to ...

Medical research shapes healthcare every day, but not all studies are created equal. Knowing the differences can help you feel more confident reading health information online and understanding what ...