Final answer:
A research study of over 700 college students found that more than half of them had experienced blackouts at least once in their lives due to excessive alcohol consumption.
Step-by-step explanation:
Based on a research study of over 700 college students, it was found that more than half of them had experienced blackouts at least once in their lives. Blacking out refers to a temporary loss of memory or consciousness due to excessive alcohol consumption. This finding highlights the prevalence of alcohol intoxication among college students and the potential risks associated with it.