5. knowledge workers are physically able to keep on working into old age. but they face a new risk : they may become mentally finished.

the common cause of this is on the job.
in one highly successful company, top management said to me: our engineers seem to be in a slump. can you find out why? so i talked to about a dozen very competent, successful, well-paid people in engineering.

they all said: my job is important to the success of the company. i have done it now for about then years, and i am very good at it.

but i can do it now in my sleep. it no longer challenges me. i no longer look forward to coming into the office every morning. what they needed was to regain some true interest.

and once they had that-one of them, for instance, started to tutor high school students in math and science-suddenly their work, too, became satisfying again.

1. insecurity 2. overwork 3. boredom 4.ignorance 5.distraction

정확하신 분들만 부탁드릴게요^^