The purpose of this paper is of three –folds; (a), to analyse the awareness of the causes of NIDHL of students in tertiary institutions; (b), to explore whether students in tertiary institutions are aware of the consequences of NIDHL and (c), to ascertain whether the students are aware of the strategies for preventing NIDHL. The sample of this study is made up of 525 students from 5 tertiary institutions in Enugu. The design of the study is a descriptive survey. To collect data from the respondents, three research questions were formulated and validated by three experts, one in measurement and evaluation and two from special education. The validated instrument was trial tested at Nnamdi Azikiwe University Awka, Anambra State and a reliability coefficient of 0.76 was obtained. The findings of the study among others showed that the students in the 5 tertiary institutions in Enugu were not aware of the causes of NIDHL and their consequences.