Anxiety is a normal stress reaction to our surroundings. It triggers the body to physically and mentally prepare for a possible or perceived danger. It does this by releasing hormones like adrenalin and cortisol into the bloodstream.

A measured amount of anxiety is normal and helpful. But when anxiety is too much for the situation, it can become debilitating. It can lead to disorders such as generalized anxiety, obsessive-compulsive disorder, phobias, panic attacks and posttraumatic stress disorder.

Resources 

• Managing Anxiety in Toddlers and Preschoolers