The report notes that the new system doesn’t require users to tell Alexa that they are ill, the assistant is able to automatically know when the user is sick. It also adds that the patent filing covers the tracking of emotions. The company reportedly describes a system wherein Alexa will be able to understand when the user is bored or tired just by examining voice. It will then suggest activities for the user. Further, Amazon may also use this feature to target advertisements towards different moods.
Of course, just because Amazon has filed a patent application for this system, doesn’t confirm that we’ll be seeing it applied on a future update.