Professor Heidelise (Heidi) Als was a visionary and trailblazer for Infant and Family-Centred Developmental Care (IFCDC) and as the founder of NIDCAP (Neonatal Individualised Developmental Care and Assessment Program) and the associated foundation, she has made a pioneering and lasting contribution to improving the health outcomes of hospitalised infants worldwide. She passed away unexpectedly in August, leaving a big void. Heidelise Als developed her interest in the interplay between environment and…