http://www.youtube.com/v/2lXh2n0aPyw&hl=en&fs=1&
This video asks the question: Can you get more people to choose the stairs by making it fun to do?
Their findings: 66% more people than normal chose the stairs over the escalator.
Instances of changing conventional wisdom abound.
From this NYT article Splits Form Over How to Address Bone Loss:
News to be greeted with thunderous applause: People who have large thighs are less like to suffer from heart disease, and those with the thinnest thighs are twice as likely to die sooner. From this BBC News article Large thighs 'may protect heart':
From this article Study: Weightlifting helps breast cancer survivors:
OBJECTIVE—Muscle-strengthening activities (MSAs) may increase insulin sensitivity, thereby reducing the risk of diabetes.
From this article Facts on Foods That Speed Up Metabolism:
· The amount of calories you eat, your genes and the amount of calories that you burn while eating and exercising determine your metabolism.
· The body breaks down carbohydrates, then fats and finally proteins.
· The food that you eat makes up 5 to 10 percent of your metabolic rate.
Arthur Jones the founder of Nautilus and MedX is said to have spent 100 million dollars on the development of the MedX lumbar machine. Arthur, given to hyperbole, also said that if everything in his life up to that point were bad and evil this exercise machine more than made up for it. Studies report amazing results, client have benefited and as one who has suffered serious back injuries I can attest to the positive results.
The MedX lumbar has features no other equipment offers. Some of the advantages:
From this Science News article Progressive Resistance Strength Training Helps Older People In Daily Life:
When the body is confronted with demands beyond what it is used to handling it makes an adaptation. It is the body’s form of self-protection, and it only occurs if you have enough rest. 
