Giovani, M.G.G. 2026. THE EFFECT OF EXCESSIVE CAFFEINE THE EFFECT OF EXCESSIVE CAFFEINE CONSUMPTION ON THE STUDY FOCUS OF THIRD-YEAR MEDICAL STUDENT AT CIPUTRA UNIVERSITY : THE EFFECT OF EXCESSIVE CAFFEINE CONSUMPTION ON THE STUDY FOCUS OF THIRD-YEAR MEDICAL STUDENT AT CIPUTRA UNIVERSITY . Jurnal Medika Hutama. 7, 2 Januari (Jan. 2026).