According to the Worldwide Penis Size Map, men in Congo have the largest penis size. US men are 95th, just after the Russians.
Cigarettes can contain more than 4,000 ingredients, which, when burned, can also produce over 200 ‘compound’ chemicals. Many of these ‘compounds’ have been linked to lung damage.
Chickens can suffer from depression.
George Lucas was diagnosed with hypertension and exhaustion as a result of Star Wars.
Having orgasms prevent men from prostate cancer. Two large studies, reported in 2003 and 2004, found that middle-aged men who had (or at least remember having) at least four orgasms a week throughout their 20s, 30s and 40s had a reduced risk of prostate cancer by as much as one-third. Some researchers speculate that ejaculations may clear the prostate of carcinogens.
Most people burp on average 15 times a day.
In 1962, an epidemic of laughing broke out in Tanganyika (now Tanzania). Starting among a group of schoolgirls, the laughter spread rapidly, eventually infecting neighbouring villages and forcing schools to close. It lasted for at least six months.
Anton-Babinski syndrome is a rare condition in which a blind person doesn’t realise they are blind. They usually insist they can see perfectly well, and make up excuses for why they make errors – such as blaming the quality of light in the room, or saying they’re a bit tired.
The best way to tell if you have bad breath is to lick your wrist, let you saliva dry, and then smell it.
Looking at the Sun can trigger a sneeze. For some people, bright lights mean big sneezes.