A growing number of Americans are choosing to eat lunch at their desks or even giving up breaks entirely at work. But research shows that our sedentary and workaholic ways could actually be making us less productive while also diminishing our mental and physical health, the Wall Street Journal reported.

Studies show that the attention it takes to stay focused at work drains us of psychological, social and material reserves throughout the day. This so-called “brain drain” can lead to stress and decreased productivity, researchers said.

To replenish your reserves, simply take a lunch break away from the desk to separate yourself from the source of that drain, suggested Chris Cunningham, PhD, a professor of industrial-organization and occupational health psychology at the University of Tennessee at Chattanooga.

According to the experts, the easiest and best way to recharge your brain at work is to leave the office and interact with nature. A change of environment gives the mind a break from having to actively decide what tasks need your attention. “And that in itself poses a sort of relief,” Cunningham said.

Studies also show that social interaction throughout the day can energize office workers. For example, eat lunch with your colleagues, but don’t talk about work. This simple act can replenish your resources and help you build strong professional relationships.

Whatever you decide to do, the most important thing is to engage in an activity that is emotionally uplifting. Even a five-minute walk down the hallway could be enough for some people to get through a draggy afternoon, Cunningham said.

Finally, here’s what not to do on a break. Avoid stressful tasks that aren’t “resource-replenishing” activities, such as reading through emails or going to the bank.

If finding a good work-life balance is still tough after taking time off, try these other tips to help control and cope with the stresses in your life.