[Knight Theamion]

PARSONS, O.A., AND LEBER, W.R. The relationship between cognitive dysfunction and brain damage in alcoholics: Causal, interactive, or epiphenomenal? Alcoholism: Clinical and Experimental Research 5(2):326-343, 1981.
RACHAL, J.V.; MAISTRO, S.AL; GUESS, L.L.; AND HUBBARD, R.L. Alcohol use among youth. In: Alcohol and Health Monograph No. 1: Alcohol Consumption and Related Problems. Rockville, MD: National Institute on Alcohol Abuse and Alcoholism, 1982. pp. 112-164.
SARGENT, J. Drug and alcohol abuse. In: Schwartz, M.W.; Charney, E.B.; Curry, T.A.; and Ludwig, S., eds. Primary Pediatric Care. Chicago: Year Book Medical Publishers, 1990. pp. 768-775.
SARIN, S.K.; CHARI, S.; SUNDARAM, K.R.; AHUJA, R.K.; ANAND, B.S.; AND BROOR, S.L. Young versus adult cirrhotics: A prospective, comparative analysis of the clinical profile, natural course, and survival. Gut 29(1):101-107, 1988.
SAUNDERS, J.B., AND CONIGRAVE, K.M. Early identification of alcohol problems. Canadian Medical Association Journal 143:1060-1069, 1990.
SAUNDERS, J.B., AND WILLIAMS, R. The genetics of alcoholism: Is there an inherited susceptibility to alcohol-related problems? Alcohol and Alcoholism 18(3):189-217, 1983.
SCHONBERG, S.K., AND COUPEY, S.M. Drug, alcohol and tobacco abuse. In: Hoekelman, R.A.; Blatman, S.; Friedman, S.B.; and Nelson, N.M., eds. Primary Pediatric Care. St. Louis: C.V. Mosby Co., 1987. pp. 821-828

Basically if you read them and you summarize them quickly (there are also newer articles on this) you would get this: 'Getting shitfaced in your youth has lasting effects in your later life, it can decrease your academical performance'

I wish I could give you a figure on how much but it is big.