The concept I learned today is under lymphatic homeostasis which is stress and immunity. When you are stressed, your immunity is affected negatively as stress causes cortisol to be secreted which inhibits your stress response. As a result of this, you may be prone to more sickness. This is important for me to know as a nursing student because nursing can sometimes be stressful so I need to know to reduce the stress I experience. I cope with stress by doing my coping mechanisms which are talking with my friends and watching tv shows.