Anupam Sengupta went from being an engineer in India to studying physics in Germany, before diving into biology in the US and Switzerland. Combining his expertise in these fields, the Indian national came to Luxembourg in 2018 with an FNR ATTRACT Fellowship to set up his research group at the University of Luxembourg as a tenure track Professor in Physics. We speak to the biophysicist about his journey and passion for uncovering the secrets of how the smallest of living organisms regulate our health and happiness, and get impacted by the changes in their environment.