The brain is like a muscle; it can get into a routine. But mixing up the workout a little is healthy in both cases. In the brain, however, it isn’t without difficulties.
“These findings and our past research suggest that when you have multiple things to juggle in your mind – essentially, when you are multitasking – you are more likely to mess up,” Moser said. “It takes effort and practice for you to be more aware of the mistakes you are missing and stay focused.”
I guess it’s important to find the right balance. Multitasking is sometimes necessary, but it has its drawbacks. Depending on the upside, it may be worth it. Your mileage may vary.