On your dashboard, click on Show attentions in the Animals to check widget.
Click on the settings icon in the upper right corner of the screen.
Move the slider to receive more or less attentions.
Note that making the system more sensitive also means the amount of false attentions could raise. Making the system less sensitive also means the amount of missed possible health issues could raise.
When the animal behavior is variable, for example during grazing season, uncheck the boxes Show decreased activity for the Tag Leg to prevent unnecessary Animals to check attentions.