Abstract: The subject-matter of the present disclosure relates to a method of recommending an action for a user of an application to take to make a health improvement. The computer-implemented method comprises: receiving a plurality of user inputs responding to queries about a health of the user; generating a biological age based on the user inputs; displaying at least one recommendation to the user for managing the biological age; and receiving at least one further user input to make an action in response to the at least one recommendation.

Abstract: An ultrasonic scanning device having an ultrasonic transmission/reception probe arranged for rapid scanning in a plane while a housing of the device is being held stationary so that real time ultrasonic "pictures" of moving organs such as the heart, can be obtained. The probe is arranged to scan through a window of the housing and mounting means for the probe ensure that ultrasonic signals from the probe have a constant reference point of departure which is at a well-defined small distance from the window. Ultrasonic coupling means are provided between the probe and window, and the window, coupling means and probe may form a sub-assembly removable from the housing.