Anxiety is a normal reaction to stress and can be beneficial in some situations. It can warn us about potential threats and help us prepare and pay attention. When anxiety disorders are present, there is excessive fear or anxiety as opposed to normal feelings of nervousness or anxiousness.
Depression, also called major depressive disorder, is a common medical condition that negatively affects how you feel, the way you think, and how you act. Depression causes persistent feelings of sadness and/or a loss of interest in activities you once enjoyed. It can impair your ability to perform at work and at home and cause a number of emotional and physical problems.