Hoskin was selected for the junior canoe sprint world championships in 2017 when, as a 17-year-old, she underwent what was initially thought to be a routine pre-departure health check. Unfortunately, cardiology tests revealed Wolff-Parkinson-White Syndrome, which is present at birth and can cause rapid heartbeats and even heart failure. Hoskin required a cardiac ablation, a procedure that scars tissue in the heart to block abnormal electrical signals. It involved feeding a catheter up one of the veins in her leg and through the wall of her heart to the other side.