Those who do, like Diego, often fall behind their classmates because they have been raised in an environment where their parents are uneducated and where the need for money now outweighs the need for education - or because after hours of work, they are simply too tired to learn.

BBC: Peruvian child in slum

For those who continued to work, they reported feeling stressed and tired while doing their job.

BBC: Carers of young and old 'are struggling to cope'

She also heard from a person who runs a company in Minnesota who said it was not uncommon for employees to call into the office and say they were too tired to come to work.

CNN: Commentary: Joe, Kanye, Serena -- aren't they special?

Experts and surveys estimate that between 10% and 30% of hours are never billed by tired and overworked attorneys who cannot keep track of every piece of work they do.

ECONOMIST: Lawyers and your money

And they're tired and they're desperate, and hopes are high because he's promised that this will work.

NPR: Iraqis Move to Bolster Baghdad Security