Juggling exams and dialysis

For all teenagers, trying to study properly for exams and being totally prepared for them can be hard work, given how many distractions teenagers have. Especially if you just happen to be on dialysis. Sixteen year old Welsh teenager Sahibaa Ali is in the middle of sitting her GCSE exams but she has a special timetable to fit around the dialysis she has three times a week (she's been on dialysis