In second place, colonic irrigation is considered to be one of the biggest wastes of money. In colonic hydrotherapy, the somewhat undignified procedure lasts about 30-45minutes and involves water slowly being pumped into the colon to cleanse it before being pumped out.
However, 93% of GPs have warned that these types of celebrity endorsed alternative treatments, which they say has no medical backing, could be putting the public at risk.
Liv Tyler is one of many stars who is said to be a fan.
22,000 people agreed to clean toilets for WiFi because they did not read the terms.
Tools designed to ensure computer code in smart cars does not crash has been inspired by hungry penguins.
The rounded sleeping capsules send guests drifting into ocean before arriving on desert island by morning.
Sitting on the saddle activates the part of the brain responsible for learning, a study has claimed.
Scientists are appealing for more people to donate their brains for research after they die.
Life on Earth may have arrived from Mars on an asteroid, scientists have claimed.
Lunar mission scheduled at the end of 2017 could find out if beer can be brewed on the moon.
A bottle used to teach children how far litter can travel ended up on Scottish beach after 8,700-mile journey.