He found that those who were taken to a green space surrounded by trees enjoyed a speedier recovery ​ — as measured by heart rate and blood pressure — ​ than did those not exposed to a natural setting.
टेक्सस विद्यापिठाचे प्राध्यापक रॉजर उलरिक यांनी काही लोकांवर एक प्रयोग केला.