Caffeine creates many effects to our body's natural cycles. One of the main effects that it has on the human body is sleep cycles. Caffeine interferes with our melatonin rhythms meaning that it can delay sleep schedules and can confuse our sleep to waking up cycle. A study suggests that "400 mg of caffeine taken 0, 3, or even 6 hours prior to bedtime significantly disrupts sleep. Even at 6 hours, caffeine reduced sleep by more than 1 hour. This degree of sleep loss, if experienced over multiple nights, may have detrimental effects on daytime function" (NCBI - WWW Error Blocked Diagnostic, n.d.).
Another natural aspect to our body is the hippocampus. This plays an important role in learning and memory. The hippocampus is mainly associated with long-term memory. It helps process two types of memory, declarative memories and spatial relationships. Caffeine
helps enhance short term memory and makes it easier for the brain to remember information. Although it has an impact on short term memory, it does not effect long term memory.
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