If you spend any time at a computer for work, you might find that headaches are one of your job’s biggest side effects. You’re not alone. Caused by hours of screen time, poor desk posture or extended sitting, tension headaches are one of the most common complaints we treat. The good news is that practicing good office ergonomics and getting up out of your chair for a break will go a long way to help ease them. Here's five different ways you could use your lunch break to help counter the effects of sitting -- try out one today!