Medical Myths

Eight glasses of water a day - and other myths:
You've heard these tidbits of medical wisdom many times 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 they aren't true or there is little scientific evidence to back them up.
I guess my wrinkles are due to old age, not dehydration. What a relief!