Green design in hospitals is now scientifically proven to improve patient outcomes. According to a new study from Texas A&M University. Researchers found that simple natural design elements like plants, nature views, and green-colored décor significantly helped reduce stress. Also enhance mental clarity in patients recovering from trauma..
For the study, 188 participants over 18 years old were involved. They were exposed to a VR video simulating a traumatic roller coaster accident followed by hospitalization to induce acute stress.
Afterward, participants, acting as recovering in-patients, evaluated 12 different hospital room designs via a high-resolution Varjo X-3 headset. These designs varied in their window views, the presence of plants, and interior color schemes. Participants rated each room based on how well it helped them feel physically relaxed and able to clear their mind.
Key findings from the research which includes quickest way to recover for patients:
Indoor plants had the highest utility among room attributes for promoting both physical relaxation and mental clarity.
ADVERTISEMENTVisible green nature in the view also positively contributed to these outcomes.
Green décor, such as wall paint and artwork, was found to contribute positively to both relaxation and mental clarity.
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The depth of the view was significant, with rooms offering a broader view of the sky and horizon rated as more restorative than those with limited outlooks.
Views not obstructed by visible parts of the hospital building exterior were associated with notably higher restoration scores.
“Verdant elements” had the strongest overall impact on stress recovery. However, for mental clarity specifically, views not blocked by the hospital envelope and having a deeper view with visible sky were even more important.
Participants who reported higher levels of stress after the simulated trauma benefited even more from these natural elements, experiencing an amplified effect of plants on both relaxation and mental clarity.
This study builds upon Stress Recovery Theory (SRT) and Psychoevolutionary Theory (PET), which suggest that natural environments can reduce stress and promote psychological recovery. It is among the first to compare the relative influence of various natural elements when combined in controlled, immersive settings. The researchers concluded that incorporating biophilic design—design that connects people with nature—into healthcare environments could be a low-cost, high-impact strategy for improving patient outcomes. They emphasized that even small changes, such as adding potted plants or using green tones in décor, can make a meaningful difference. While the study utilized simulated patients and virtual environments, the findings offer a valuable framework for real-world hospital design, with recommendations for further studies involving actual patients.
