Fatigue is one of the most common - and least understood - challenges people face after surviving a critical illness. In this opening episode of a three-part mini-series, we speak with critical care researchers Dr Louise Stayt, Professor Suzanne Bench, and patient co-applicant Rebecca Langley about the hidden impact of fatigue on recovery and daily life. Rebecca shares her personal experience of rebuilding strength and confidence, while the team explores why awareness of post-ICU fatigue has become even more important in the wake of COVID-19.