Doing multiple tasks overstimulates and fatigues the frontal lobe, the part of our brains which regulates problem-solving and decision-making. Unsurprisingly, this slows down our efficiency and ultimately takes its toll on our overall performance. Multi-tasking also leads to the build-up of cortisol, the predominant stress hormone.

“There’s something that’s so engrossing about the kind of interactions people do with screens that they wall out the world,” she said. “I’ve talked to children who try to get their parents to stop texting while driving and they get resistance, ‘Oh, just one, just one more quick one, honey.’ It’s like ‘one more drink.’ ”

“We’re paying a price in terms of our cognitive life because of this virtual lifestyle.”

Fact #1: The Internet may give you an addict's brain.

act #2: You may feel more lonely and jealous.

Fact #4: Memory problems may be more likely.

"Multi-tasking adversely affects how you learn," said Russell Poldrack, UCLA associate professor of psychology and co-author of the study. "Even if you learn while multi-tasking, that learning is less flexible and more specialized, so you cannot retrieve the information as easily. Our study shows that to the degree you can learn while multi-tasking, you will use different brain systems."