If you’ve ever taken a walk outside on a hard day to shed stress, you may be onto something. A growing body of scientific evidence confirms what many of us know innately — spending time in nature is good for us. That’s why Susan Abookire, a Harvard Medical School assistant professor of medicine at Brigham and Women’s Hospital, guides monthly forest therapy walks for medical residents and faculty — a group at high risk of burnout. Forest therapy guides help you “really slow down” into deep awareness of your senses through nature, said Abookire. For those trying it without a guide, she advises tuning in to your surroundings — notice colors, shapes, sounds, movement, scents.