Why do humans sweat while stressed?

Read also:

• NASA spots Martian volcano twice the height of Mount Everest bursting through the morning clouds: Space photo of the week - Live Science
• What's a joke you haven't used yet, but are dying to share?
• Why does Islam give a bad vibe?
• Has your wife made you a cuckold?
• Why does Boko Haram attack its own Muslims?
• What is the sum of X+XX+XXX+XXXX?
• How can I fall asleep fast at night?
• Feather-legged lace weaver spider kills prey by covering it with toxic silk - Phys.org
• When a narcissist mad at their new supply, do they take it out on the old supply?
• What should I do to stop being angered easily?