A b s t r a c t A r t i c l e I n f oEnergy drinking among college students is widespread and known to cause significant harms and hazards for the drinker. In this study we have determined the prevalence estimate of energy drinks among college female students in Jazan University such as Bison, Power Horse and Red Bull which may effect on blood chemistry, and determine correlation of consumption with study pattern, urination, health problems, heart pulses, nausea, abdominal pain, diabetes, menstrual period problems and headache. We made questionnaire that assessed consumption patterns of energy drinks among these students and withdraw blood samples for analysis. The consumers were divided into two groups regular and irregular consumers. This study showed that energy drinks are diuretic. There is a significant relation between energy drink consumption and health problems, and it also proved the strong effect of energy drinks stoppage for regular consumers. There is no effect of energy drink on blood chemistry and on Follicle stimulating Hormone.

Khat chewing is a social habit which has stimulatory action due to its cathinone content, but its adverse effects on health are a source of growing concern. The aim of our study is to evaluate the prevalence and health adverse effects of khat chewing among students in Jazan region in the Kingdom of Saudi Arabia (KSA). The study sample included 195 students from Applied Medical Science College, who were randomly selected and were asked through questionnaire and with a signed consent. About 5 ml of venous blood was collected in plain vacutainer tubes from 38 khat chewers and 20 non khat chewers as normal control. Serum was used to determine alanine aminotransferase (ALT), alkaline phosphatase (ALP), total and direct bilirubin, total protein, urea, creatinine, uric acid, and albumin. The sample consisted of 134 males and 61 females, with age range 19-27 years, and their mean age was 21.1 year. 40% of students were from urban area, and 81.5% of them from Jazan region. Out of 195 students, only 38 (19.5%) were found to chew khat. Biochemical results revealed highly significant differences among chewers in ALT, ALP, uric acid, and urea (p<0.005) compared to nonchewers group. There is also a significant difference in the total protein level (<0.05), while no significant differences were noticed in other biochemical traits analyzed. We concluded that the prevalence of khat chewing among students is fairly high (19.5 %), and that adverse effects of khat chewing on health are very clear, so all efforts should be contributed to solve this problem by increasing awareness of all members of the society to khat chewing risk.