The stimulating properties of natural caffeine in coffee affect individuals differently. Coffee drinkers should also keep in mind that caffeine can also be found in other foods and beverages.
Everything from heredity to body weight, gender, metabolism, age, and coffee drinking habits can affect how your body responds to the caffeine in coffee. In fact, genetically there are “fast caffeine metabolizers” versus slow ones. Slow metabolizers and others who are particularly sensitive to caffeine may avoid coffee before bedtime, for example, while others can drink coffee and sleep without issue.
Regular drinkers tend to self-regulate their consumption instinctively. Some research findings link the caffeine in coffee to potential health benefits. Other naturally occurring compounds such as antioxidants are also frequently recognized as potentially favorable to health.