The Science of Anxiety (Infographic)
Increased heart rate. Heavy breathing. Maybe even sweating hands.
These can be symptoms of the fight-or-flight response, your body’s physiological reaction to perceived physical or mental threats. Generally speaking, these are signs of anxiety, your body’s reaction to stress. This type of anxiety is normal and can be expected to hit during certain life events and can last for brief periods of time.
You can read more here.