Techniques for managing a user's tasks based on the user's focus level. High focus time slots are identified during which the user has a high level of focus, as well as low focus time slots during which the user has a low level of focus. Tasks for completion by the user are scheduled such that the high focus time slots are allocated to tasks that require a high level of user focus, and the low focus time slots are allocated to tasks that require a low level of user focus. High focus times may be identified based on user indications and/or on biometric data describing the user's physical state. Interruption requests may also be managed based on the user's focus level. Necessary resources may be pre-loaded prior to the high focus time periods, and breaks may be automatically scheduled to maintain the user's high level of focus.