Nearly 75% of all aluminum ever produced is still in use today due to recycling.
2. 71% of Americans aged 17 to 24 are ineligible to join the military, primarily because they are too overweight or too poorly educated, or have a record of serious crime or drug abuse.
3. 14.4% of males and 19.1% of females who are veterinarians have considered suicide since graduation. This is three times the U.S. national mean.
4. Fishing nets account for 46% of the trash in the Great Pacific Garbage Patch, with the majority of the rest composed of other fishing industry gear, including ropes, oyster spacers, eel traps, crates, and baskets.
5. Chopping wood increases testosterone production by 46.8%. That’s as much as 17% higher than soccer and other studied competitive sports.
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About 96% of Americans use automatic cars while 80% of Europeans use manual.
7. 39.5% of Japanese adults sleep less than 6 hours a night, making naps in public a social norm even to the point that napping during work is often seen as a subtle sign of diligence thinking you must be working yourself to exhaustion.
8. American employees at large-sized companies (1000 or more employees) only spend 45% of their time actually “working”, i.e., time spent on primary job duties and not on meetings, administrative tasks, and interruptions.
9. Studies by the IIHS and Federal Highway Administration have shown that roundabouts typically achieve a 37% reduction in overall collisions, a 75% reduction in injury collisions and a 90% reduction in fatality collisions.
10. About 0.7% of the world’s population is estimated to be drunk at any given time, which is roughly 52 million people.
75% of the world's food is generated from only 12 plants and 5 animal species.
12. 50-85% of the oxygen on Earth comes from the ocean, mainly from phytoplankton.
13. You steadily "dry out" as you age. A newborn human baby is 75% water, adult men are about 60%, adult women 55%, and elderly people are roughly half.
14. Japan's rail workers use pointing-and-calling, a system of associating one’s tasks with physical movements and vocalizations to prevent errors. It is known to reduce workplace errors by up to 85%, according to one 1996 study.
15. A 10-year psychological study found that men who kissed their wives before leaving for work lived, on average, five years longer, earning 20-30% more than peers who left without a kiss.
North America's Lake Superior contains 10% of the world's surface freshwater and holds the remains of 6,000 shipwrecks.
17. The cost of college textbooks in the US has risen more than 1,000% since 1977, even faster than tuition, health care costs, and housing prices, all of which have risen faster than inflation.
18. 95% of those of European origin can trace their maternal roots to one of seven women who lived between 10,000 and 45,000 years ago.
19. Nearly half of all airline pilots admit to falling asleep during a flight and 29% of these pilots reported waking up and seeing everyone else in the cabin asleep as well.
20. Air Force learned that by flying its C-17s in a large V formation similar to geese, they saved more than 10% of fuel, which would be millions of dollars.
Approximately 80% of current US astronauts wear eye correction (i.e. glasses or contact lenses). As long as the astronauts' vision is correctable to 20/20, they are allowed to fly.
22. About 53% of the people who live in Fiji don’t have access to clean, safe water yet Fiji water is the nation’s largest export.
23. The United States experiences approximately 75% of all tornadoes in the world.
24. About 95% of the Mongols are lactose intolerant yet eat a diet that consists heavily of dairy products.
25. About 33% of the men in Britain aged between 35 and 60 years are unable to see their penis due to obesity.