In this episode we discuss how the use of a light is helping doctors to understand how the lungs of premature babies are functioning in way that can be done using a harmless light source, can be continuously so you can keep an eye on this at all times and which can help ultimately bring better outcomes for these babies futures. The technique this is all based on is as in Scattering Media Absorption Spectroscopy (GASMAS) and in this podcast we learn more about this novel technique.  Hosted by David McGovern. Special thanks to our guests Stefan Stefan Anderson-Engels and Hanna Sjöström. This podcast is created by Irish Photonic Integration Centre in partnership with Science Foundation Ireland. Special thanks to our producer Kieran Hurley from University College Cork UCC 98.3FM radio. For more information visit our website https://www.ipic.ie/engagement/podcast/.