11. No new learning or being addicted to your email, text messages or
video games increases your risk of dementia and depression. In
one study sponsored by Hewlett Packard, people who were addicted
to their gadgets lost 10 IQ points over a year. It was more harmful than
smoking marijuana, :which also decreases IQ. You can decrease these
risk factors today by limiting your gadgets and adding mental exercise
to your life.