When you breathe deeply into your belly, it stimulates the vagus nerve, which then sends a message to the brain telling it to make the body relax. Stress hormone production is reduced, and other physiological stress effects (like capillary constriction, muscle tension, decreased digestion, etc.) are improved as well. The result? In the moment, you feel better and in the long-term you help prevent disease.
Three simple ways for science teachers to assess the level of understanding their students have of the levels of organization in the environment. Examples of living and nonliving parts of the environment can be classified by asking a series of questions.