Hyperventilation is breathing that is deeper and more rapid than normal. It causes a decrease in the amount of a gas in the blood (called carbon dioxide, or CO2). This decrease may make you feel lightheaded, have a rapid heartbeat, and be s...

Introduction Anxiety is having too much fear and worry. Some people have what's called generalized anxiety disorder. They feel worried and stressed about many things. Often they worry about even small things. Some people also may have panic...

What is a phobia? Having a phobia means you are extremely afraid of a specific object, situation, or activity. Having a phobia about something is very different from everyday worry or stress. For example, most people feel worry and stress a...

What is generalized anxiety disorder? Generalized anxiety disorder occurs when you feel worried and stressed about many everyday events and activities. Often the things you are worried about are small or not important. This type of worry di...

What is social anxiety disorder? People with social anxiety disorder (or social phobia) are extremely anxious about what they will say or do in front of other people. This includes public speaking and day-to-day social situations. But it is...

Anxiety Feeling worried or nervous is a normal part of everyday life. Everyone frets or feels anxious from time to time. Mild to moderate anxiety can help you focus your attention, energy, and motivation. If anxiety is severe, you may have...