Physical symptoms listed include dry eyes, backaches, skipping meals, poor personal hygiene (衛生) and sleep disturbances.

The popularization of digital video recorders has caused advertisers to worry that their commercials will be skipped.

Their risky behaviors—drinking too much alcohol, using illegal drugs, smoking cigarettes and skipping school—can alert parents and teachers that serious problems are brewing.

Instead of skipping out on higher education altogether, they chose community colleges or state schools with low bars for admittance.

I basically skipped my senior year," says Sergent.

Better skip dinner or hit the gym afterwards, with a cancer charity warning that some iced coffees contain as many calories as a hot dinner.

More of them, though, will skip those calculations altogether and just power through the holidays into 2017: More than half of American workers don't use up all of their allotted vacation days each year.