Amazing power of mind can help fight many illnesses, claim researchers.
Doctors have long recognised the importance of positive thinking. They call it the power of placebo, which is a phenomenon that sees patients improve after taking a dummy pill or treatment.
Some reports found that placebo works in 90 per cent of cases.
In most cases mind power is not a replacement for modern medicine but it can enhance its impact and reduce the risk of getting ill in the first place.
Here are some scientifically proven ways to rewrite the proverb and make it: "Patient, heal thyself."
A sunny outlook can help head off a heart attack, revealed a study of almost 100,000 women that was published by the American Heart Association.
Pessimists were 50 per cent more likely to die from cardiovascular disease with the highest incidence among women who scored highly for "cynical hostility".
A similar but smaller study of men found optimists had the lowest cardiac risks and pessimists had the highest incidence of artery disease.
Brain scans show that love helps us withstand pain, revealed a study at Stanford University in America.
Mind power is so effective at controlling the symptoms of irritable bowel syndrome (IBS) it is now recommended by the National Institute for Clinical Excellence.