Ecosystems need to be healthy and balanced to provide benefits for both nature and people. Scientists reviewed different ideas about what makes an ecosystem healthy and identified five main aspects: wilderness, structure, function, stability, and quality. These aspects are important for both protecting nature and using it wisely for human needs. By understanding and measuring these aspects, we can make better plans to keep ecosystems sustainable and beneficial for everyone. This research helps guide policies and actions to ensure that ecosystems remain healthy and can continue to support us through services like clean water and fresh air.