You’ve heard these chestnuts before — possibly from your own doctor:
Drink eight glasses of water a day.
Reading in dim light ruins your eyesight.
We use only 10 per cent of our brains.
But according to a report by two U.S. researchers in the British Medical Journal these and other bits of conventional medical wisdom are either not true or not proven.
In the report, they found that seven commonly held beliefs espoused by physicians and the general public are myths. These include the ideas that hair and fingernails continue to grow after death, that shaving causes hair to grow back faster or coarser, and that mobile phones are dangerous in hospitals. All the more reason to heed a different maxim: Don’t believe everything you hear.