The report said it was unclear whether the changes in the brain - an increase in glucose metabolism after using the phone for less than an hour - had any negative health or behavioral effects.
That changes now. For one week, I will only be checking my email at approximately 10 and 3 each day, spending no more than 1 hour responding to or sending email.
现在改变了，每周的工作日我每天查看邮件的次数大概从3到10次不等，大约花费1小时来处理这些邮件；
3
It can take as long as an hour for each computer to check with the Web site and get the changes.