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as much as the evolution to a vegetarian diet.
- Albert Einstein

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— Albert Schweitzer


Does life online give you 'popcorn brain'?

By Elizabeth Cohen, Senior Medical Correspondent

Key Points:
  • Experts worry the stimulation of electronic multitasking could make people unfit for real life
  • The human brain is wired to crave the instant gratification of technology
  • Studies show multitasking on the Internet can make you forget how to read human emotions

Clifford Nass, a social psychologist at Stanford, says studies show multitasking on the Internet can make you forget how to read human emotions. When he showed online multitaskers pictures of faces, they had a hard time identifying the emotions they were showing.

When he read stories to the multitaskers, they had difficulty identifying the emotions of the people in the stories, and saying what they would do to make the person feel better.

"Human interaction is a learned skill, and they don't get to practice it enough," he says.

This is your brain on technology

The human brain is wired to crave the instant gratification, fast pace, and unpredictability of technology, Cash says.

She explains that constant stimulation can activate dopamine cells in the nucleus accumbens, a main pleasure center of the brain.

Over time, and with enough Internet usage, the structure of our brains can actually physically change, according to a new study. 

Researchers in China did MRIs on the brains of 18 college students who spent about 10 hours a day online.

Compared with a control group who spent less than two hours a day online, these students had less gray matter, the thinking part of the brain.

 The study was published in the June issue of PLoS ONE, an online journal.

How to cope with popcorn brain

Some people can easily switch from the constant popping of online life to the slower pace of the real world.

If you're not one of those people and the slow pace makes you jittery, here are some tips:

1. Keep a record of your online life

Keep track of how much time you spend online, and what you're doing with it, Levy suggests. Note how you feel before and during your time at the computer.
"Everyone I've told to do this has come back with personal realizations," he says. "Very commonly, people will say they tend to go online when they're feeling anxious or bored."

2. Set time limits for your Internet use

Give yourself a specific time period -- say two hours -- to answer personal e-mails, update your Facebook page, and check texts, Cash suggests. After that, it's time to turn the computer (or phone) off and do something offline.

3. Stare out the window

Take two minutes to stare out the window. Levy says this can help train your brain to slow down a bit.

4. Establish "free times"

In a blog on Psychology Today, psychologist Robert Leahy recommends experimenting with BlackBerry-free times. "For example, "I won't check my messages between 6 and 9 p.m.," he writes. Leahy, director of the American Institute for Cognitive Therapy, also recommends rewarding yourself for every hour that you don't check. "Tell yourself that you are reclaiming your life," he writes.

5. Phone a friend

Bloggers on WikiHow have been sharing their own list of tips on how to wean themselves off of everything from Internet searching to texting. One person suggests phoning a friend instead of sending instant messages. "Call a friend and ask them to go outside for at least 3 hours a day," they write. "This will distract you from the computer."

6. Get tested

According to the Center for Internet and Technology Addiction, you may have a problem if loved ones are  becoming troubled with the amount of time you are devoting to the Internet or if you experience guilt or shame. They offer a virtual Internet addiction test that can help you determine whether it might be time to shut down, log-off or change your IM status to "away."

CNN's Sabriya Rice contributed to this report. 

Does life online give you 'popcorn brain'? -


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