A hearing assistive system including a first hearing assistive device adapted for wireless communication with second hearing assistive device, wherein the first hearing assistive device and the second hearing assistive device have at least one sensor adapted for acquiring a physiological signal each. The first hearing assistive device is adapted for providing a synchronization signal to the second hearing assistive device and instructing the second hearing assistive device to acquire the physiological signal based on timing instructions. The second hearing assistive device is adapted for acquiring the physiological signal by means of the sensor according to the received timing instructions and transmitting the acquired physiological signal wirelessly to the first hearing assistive device. The first hearing assistive device includes a processor for processing the synchronized, physiological signals acquired by sensors of the first hearing assistive device and the second hearing assistive device and synchronized via wireless communication.