In one study, for example, 1,000 consumers aged 16 and over were asked about their use of technology. It found that 91 percent of them depended on the Internet and digital devices as a tool for remembering. In another survey of 6,000 people, the same study found that 71 percent of people could not remember their children’s phone numbers and 57 percent could not remember their work phone number. This suggests that relying on digital devices to remember information is impairing our own memory systems.