Ecosystem health indicators help us understand how human activities affect the environment. Just like a doctor checks your temperature and blood pressure to assess your health, we can look at things like species abundance and water quality to gauge the health of ecosystems. Different indicators show us different aspects of ecosystem health, like the number of species present or the levels of certain elements. By using these indicators, we can see if an ecosystem is in good shape or if it needs help. If the indicators show that an ecosystem is not doing well, we need to take action to restore it to a healthier state.