Why do humans sweat while stressed?

Read also:

• Researchers claim spoof-proof random number generator breakthrough - theregister.com
• The Club World Cup is finally up and running — and soccer may never be the same - AP News
• What happens when you have paranoid schizophrenia?
• What is the difference between heaven and heavens?
• Why is it that women are stronger than men nowadays?
• What do you respect the most about Elon Musk?
• Why are women attracted to ugly guys?
• Have you ever been forced to undress for money just once?
• This is a real question: Why do a lot of men/boys hate (yes, hate) women that voice their criteria in choosing a partner? Even when the criteria is sane and responsible. Besides it being, sadly, an effective mating strategy, why does it exist?
• Is it just me, or do we all hate Sasuke from Naruto?
• Why are people nowadays so into anal sex?