Final answer:
Pop ups should be enabled for vitals when conveying important information or capturing attention, such as in a health monitoring app for abnormal readings or medication reminders. Time-sensitive events or actions, like limited-time offers in online shopping, can also warrant pop ups. However, pop ups should be used sparingly to avoid a negative user experience.
Step-by-step explanation:
The pop ups should be enabled for vitals when it is necessary to convey important information or capture the user's attention. For example, in a health monitoring app, pop ups can be enabled to alert the user about abnormal vital sign readings or remind them to take medications.
Pop ups can also be used when there is a time-sensitive event or action needed. For instance, in an online shopping website, pop ups can be enabled to notify users about limited-time offers or flash sales.
However, it's important to use pop ups judiciously and consider the user experience. Too many pop ups can be intrusive and annoying, leading to a negative user experience. Therefore, they should be used sparingly and only when they add value to the user's interaction with the website or app.