A new study suggests that your level of sleepiness or alertness during the day may be related to the type of food that you eat, reports Discovery News.  Results show that higher fat consumption was associated with increased objective daytime sleepiness, while higher carbohydrate intake was associated with increased alertness, notes a U.S. News & World Report story by HealthDay News.  The results were published in the SLEEP 2013 abstract supplement and will be presented Tuesday, June 4, at SLEEP 2013 in Baltimore, Md.