China's massive ecological restoration project has been making waves, but its impact on people's health is just starting to be understood. Researchers dug into data from the China Family Panel Studies to see if the project had any effect on residents' self-rated health. They found that areas where the project was implemented saw a significant boost in people's overall well-being. But how did this happen? The researchers looked at various factors, including air quality, access to green spaces, and people's socioeconomic status. They discovered that the project led to lower levels of air pollution, more green spaces, and a reduction in chronic diseases. People also reported sleeping better, exercising more, and feeling more satisfied with their lives. Even household medical expenses went dow