
Loneliness increases a person’s risk of mortality by 26%, according to a study.

One of the main attractions in Pyongyang’s Zoo, in North Korea, is a chimpanzee that smokes a pack of cigarettes a day.

Legends say China began in a great flood, some 4,000 years ago. Scientists found geological evidence that the flood was real.

When dropped from the same height, a hardened steel ball will actually bounce higher than a rubber ball of the same size.

An experiment in 1998 found that a bright light shone on the backs of human knees can reset the brain’s sleep-wake clock.