The Truth about Multitasking
You may think that multitasking strengthens your brain by performing various mental tasks at once. Well, guess what? Multitasking doesn’t exist! You’re simply switching back and forth tasks, called serial tasking. You can’t fully focus on one subject while doing something else, as the quality of your work will just be average. Don’t settle for average! “Multitasking” causes your focus to slowly diminish, as the facts, memories, and information in your head become cloudy.
Studies show, such as those at the University Of London showed that subjects who multi-tasked while performing cognitive tasks experienced significant IQ drops, similar to those who skip a night of sleep. Scientists at MIT have found that multitasking has been found to increase the production of the stress hormone cortisol as well as the fight-or-flight hormone adrenaline, which can overstimulate your brain and cause mental fog or scrambled thinking.
The cognitive danger associated with multitasking, like the drops in IQ may cause in permanent damage. Organizing thoughts and filtering out useless, irrelevant information become more difficult and you lose focus as you go.
Remember, don’t half ass one thing. Whole ass it. :)