Begin by navigating to Account Profile in the top right. 

From here, the Notifications tab will be at the right.

Once selected, you will be able to access the options for push notifications and email notifications. Each notification can be set to either instant, meaning you will receive them immediately after the action, or turned off completely by selecting the "none" option. 

To receive notifications for Schedule items overdue and Selection reminders, you can specify the notification time from the dropdown list.

To determine the frequency of email notifications, simply choose the desired day and time from the dropdown lists.