Multitasking

- Why aren't we capable of keeping doing just one thing?
- Is multitasking good for our brain? Give me at least two reasons
- Why is e-mail related to multitasking?
- Why is checking e-mail most of the time bad for us?
- What makes our brain "feel" exhausted?
- How much time shall we focus on a task and how much should we break?
- How can switching off mobile notifications help you?
- Is listening to music considered as multitasking? Why?
- How many methods do they describe to stop multitasking?