Why do humans sweat while stressed?

Read also:

• Have you ever had a bad gut feeling about someone and it was right?
• Newspaper headlines: Britain 'battle ready' and 'new Maddie search' - BBC
• What is the most offensive thing someone has ever asked you?
• What are some things that children used to wait for, but are no longer common in today's society?
• CBO estimates Trump's bill could add $2.4T to deficit, leave 11 million without health insurance - ABC News
• Why do some straight men like to suck dick but don't find other males attractive?
• How do you deal with a neighbor stealing?
• Astronomers discover black hole ripping a star apart inside a galactic collision. 'It is a peculiar event' - Yahoo
• Why do older men like to get anal sex?
• If we do not know the name of the father of a child, e.g. a foundling, an illegitimate, etc., then to whom should the bin or the binti of the child's name be applied?