Americans who do not sleep

Top 4 in Top 10 Most interesting things about America you probably don't know.

If the Vietnamese often have a habit of sleepiness to relay for the afternoon of study or work effectively, the Americans are completely the opposite. Whether working at work or freelancer, they spend very short lunch time. Although they are also late, they wake up early, but they do not have the habit of sleeping. Even Vietnamese people living in America also influence this habit.