My research focuses on how disease constrains the evolutionary process. This has primarily involved demographic studies of behaviour, meiosis and life history in insects. We have found that fungus-infected insects adaptively alter their thermal preferences, shift their diet, and exhibit higher meiotic recombination. These phenomena provide basic insights into evolution, health and healthy ageing. But, they are also important for insect control and managing the spread of human diseases by insects. Our current research is focused on applying what we have learned to help people, especially with respect to fertility, alternative medicine and Chagas Disease.