According to performance coach Heidi Hanna, Ph.D., we spend only 10 percent of our time in the current moment, 50 percent anticipating what’s ahead of us, and 40 percent looking back. Although most of us brag about our ability to multitask, the research actually says folks who completed two simultaneous tasks took up to 30 percent longer and made twice a many mistakes as those who completed the same tasks in sequence. But inefficiency isn’t the only drawback of texting in a lecture or at work, multitasking also creates higher levels of cortisol, the stress hormone responsible for most funks. In her book,The Sharp Solution
, Dr. Hanna cites the findings of researchers at Reuters who found that two-thirds of respondents said that information overload had damaged their personal relationships and one-third believed it had damaged their health.