Why do we sweat more when we are anxious?

We sweat because our body is responding to "fight or flight." A rush of adrenaline, caused by fear and panic, send our body's sympathetic nervous system into overdrive.

When you are anxious, you body kicks your flight or fight response on. This is where you brain tries to rationalize if you should stay and fight or get out of there as quickly as possible. When this response kicks in, adrenaline is released to prepare for the extra energy needed for the fight or flight situation. Your body sweats to cool down and release the extra adrenaline.

Your heart rate increases and normally when it increases it due to physical work that makes you sweat

Think of anxiety like this; You get nervous. Very, very nervous. That's more or less what it is. You get somewhat scared at times and nervous. When people get nervous they tend to sweat more. It's as simple as that really. Anxiety is nervousity on a very high level.

Our bodies react to fear and anxieties in a Similar was to life threatening events. If we were face to face with a tiger we may sweat or feel our hearts race. Anxiety inducing situations send similar messages to our brains and bodies that activates biological responses, such as sweating. Coping ahead when we are aware that a anxiety ridden activity is upcoming allows us to put a place to keep us grounded. This may be something as simple as a breathing technique or a visualization activity. The good news is that our thoughts (and practice) can help us to reduce what our bodies do in response to stress.