Houseplants aren’t just beautiful air purifiers they actually help calm you. Researchers have found that simply being around plants can induce your relaxation response. One Washington State University study found that a group of stressed-out people who entered a room full of plants had a four-point drop in their blood pressure, while a comparison group who didn’t see plants dropped only two points, Prevention magazine reported.

A Harvard behavioral research study conducted by Nancy Etcoff, Ph.D., of Massachusetts General Hospital and Harvard Medical School, shows that people feel more compassionate toward others, have less worry and anxiety, and feel less depressed when fresh cut flowers are present in the home.