"Mind games may improve our performance at work", reads the headline in The Times. The newspaper reports that a new study has shown that volunteers who took part in "rigorous   more »

TWO WEEK SLEEP DIARY INSTRUCTIONS: Write the date, day of the week, and type of day: Work, School, Day Off, or Vacation. Put the letter “C” in the box when you have coffee, cola or tea. Put “M” when you take any medicine. Put “A” when you drink   more »