Caffeine is a complicated chemical that is naturally occurring and can be synthesized, manufactured, and added to food, dietary supplements, cosmetics and drugs. Caffeine, particularly in the form of coffee or tea, is used by the majority of people worldwide. The current study data represents that most respondents take tea (90% male and 83% female), coffee (82% male and 71% female) and soft drinks (81% male and 64.5% female) as caffeine-containing products. Few respondents take caffeine as a medicine. This data shows that male respondents take more caffeine as a medicine than female respondents. For all ages, male respondents essentially get caffeine-containing products through a day at work/study more than females. The data suggest that in all ages, both respondents believe that caffeine has increased their activeness and alertness during the day. Most respondents replied that their behaviour does not change after taking caffeine-containing products. The majority of the neurobehavioral work suggests that the desirable benefits of caffeine (e.g., increased alertness) are ubiquitous. Caffeine is a potent drug that complies with the criteria of an addictive substance regarding dependence, tolerance and withdrawal. We observed that 46% of males and 34% of females (age ; 20 years), 49% of males and 36% of females (age 20-30 years), 40% of males and 24% of females (age >30 years) respondents are addicted to above caffeine-containing products, without a proper diagnosis by a specialist. The respondents mostly take caffeine for refreshment (21% male and 17% female), enjoyment (18.5% male and 24.5% female), habitually (19.5% male and 15.5% female), and most respondents (32.5% male and 40% female) take caffeine-containing products two times per day according to above data. Female respondents (38%) respond that they can continue their work without the intake of caffeine-containing products more than 24 than male respondents (20.5%). We inferred that the prevalence of caffeinated drinks was higher in males compared to female students. Caffeine could lead to discomfort and impaired cognitive performance, and over-intake can cause adverse effects such as headache, drowsiness, depression, fatigue, and difficulty concentrating in students.