https://www.theguardian.com/technology/2018/jun/01/cancer-fitbit-treatment-chemotherapy > Researchers say wearable fitness trackers could also allow doctors to step in before patients must be sent to hospital > Wearable fitness trackers, such as the popular Fitbit, have the potential to help doctors predict which patients will do well on a course of chemotherapy, and be able to intervene before unexpected admissions to the hospital, experts believe.