According to a new study, people feel more productive, healthy in green buildings. Employees tend to feel healthier and feel more productive in office-spaces that are sustainable and energy-conscious.

The study was done on a group of employees before and after their building was converted to LEED Certified. LEED certification is a Leadership in Energy and Environmental Design ratings system issued by a building industry association. It is the dominant “green” program for buildings in the U.S.

According to the study, “small benefits to employees suffering from asthma and respiratory allergies. Those people would gain 1.75 more work hours per year working in the new building because they would take less sick time.”

Improvements in lighting and energy sources are great ways to improve the green atmosphere of your workplace. How are you going green in your office?