Catch it right away.
Your body stresses out at some of the most mundane things, and it can spiral out of control quickly. One of the best ways to fight stress is to stop your "stress reflex" right when it starts. If you feel the stress coming on, start thinking early on whether or not that's really something worth getting worked up over.

Fix your posture.
Using more powerful body language can make you more confident but psychologists have found it can also reduce stress – even if you're faking it a little bit. People who adopt more open, confident, powerful poses found their stress levels reduced, even if just for a few minutes. So, striking those poses in the mirror before your big meeting may not be as silly as they feel.

Have a snack.
This doesn't mean go and stress eat the leftover donuts in the break room, but sometimes stress can be intensified by certain mundane things like taking care of your physical needs. If your blood sugar level is low, eating can seriously turn your bad mood around after just a few bites. Incorporating a source of protein and carbohydrate in your snack can help to decrease dramatic increases or decreases in your blood sugar, while at the same time helping you feel fuller longer.

Laugh out loud.
We know that laughing can put us in a better mood, but it can also help with managing stress. It's true that laughter really is the best medicine. Pop in your favorite comedy or, if you're still at the office, take a few minutes to watch some stand-up comedy on YouTube.

Meditate.
The old adage of taking deep breaths when you're stressed out is quite true. Meditation isn't always sitting cross-legged in an empty room lit by candles; it's a tried-and-true way of calming yourself down, improving your focus, and ridding your mind of distractions. Sit down and consciously focus on your breathing to forget the things stressing you out.