The pill dissolves in your stomach acid, whereby a signal is sent to a special plaster on your body. This plaster then communicates via Bluetooth with an app on your smartphone. Ingestibles can not only monitor your vital organs, but also tell you when you last took your medication. They help doctors with their research and can be life-saving when used to treat chronic conditions: almost fifty per cent of patients don't take their medication as prescribed. The pills can also help businesses to take better care of their employees, for instance by offering a made-to-measure welfare programme. It is still unclear what consequences this application could have for the privacy of patients and employees.