Exploring how indoor air pollutants lead to respiratory problems is an example of using biology to understand and solve problems related to human health.

Here's why:

* Biology is the study of life. This includes the study of how organisms function, including the human body.

* Respiratory problems are a health concern. They can range from mild irritation to serious conditions like asthma and pneumonia.

* Indoor air pollutants are a factor in respiratory problems. Understanding how these pollutants interact with the human respiratory system is crucial for developing solutions.

Therefore, this exploration falls under the umbrella of biomedical research, which specifically focuses on understanding and treating human health issues.