Why do humans sweat while stressed?

Read also:

• In England, there's a small city called York which was named after New York. Why wasn't London, the largest city in England, named after New York? Why York?
• Call of Duty plagued with issues after Season 4 launch - Windows Central
• NASA Discovers Strange X-Shaped Structures in Earth’s Upper Atmosphere - Indian Defence Review
• Scientists make disturbing discovery in analysis of human bodily fluids: 'Further research is required' - Yahoo
• Can I add pencil on top of my dry brush oil painting? Reason being it's easier to draw darker hair colour. Will pencil lead and oil paint interact and cause something horrible?
• What do you think of casting Emma Watson as the next James Bond?
• Why are French people known for having affairs?
• I tested Apple’s 11th-gen iPad for a week, and it’s still the best tablet - CNN
• Republican Trump is a billionaire, president, won't be held accountable for multiple felonies, and pretty much has whatever he wants. So why is he always whining and crying about stupid, pointless stuff? Is he incapable of happiness?
• Walking This Many Steps Per Day Can Cut Your Risk Of Early Death - HuffPost
• Mark Zuckerberg, Elon Musk, and Sam Altman Announce the End of Smartphones — But Tim Cook Isn’t Playing Along - The Daily Galaxy