Ever wondered why some people feel drowsy after a cup of coffee, a beverage typically consumed to boost focus, energy, and concentration? This article delves into the peculiar phenomenon, outlining five main reasons: dehydration, caffeine tolerance levels, exposure to other chemical compounds, sugar content, and adenosin levels.
The Diuretic Effect of Coffee
As a diuretic, coffee can cause the body to lose significant amounts of fluid. Overconsumption can reduce blood volume and slow down blood flow. This in turn reduces the oxygen delivered to various body parts, causing fatigue and drowsiness. Renowned certified nutritionist, Carlene Thomas RDN, stresses the importance of moderate coffee consumption to reap its benefits without succumbing to tiredness.
The Sugar Rush and Crash
Coffee beverages laden with sugar or high-calorie additions like cream, fatty milk, or artificial sweeteners can cause a quick energy surge followed by fatigue and drowsiness. The sudden rise and subsequent drop in blood sugar levels result in the classic sugar crash, leaving one feeling drained and sleepy.
The Shadow of Adenosin
The article highlights adenosin, a chemical compound in the brain that affects our body's internal clock. Fluctuating adenosin levels can contribute to the feeling of sleepiness post coffee consumption. When you drink coffee, caffeine blocks adenosin receptors in the brain, delaying the onset of tiredness. However, once the effects of caffeine wear off, there is a build-up of adenosin that can make you feel sleepy.
Mycotoxins in Coffee
Additionally, exposure to mycotoxins - toxic natural chemicals produced by fungi that grow on coffee beans, grains, nuts, and other foods - can also be a factor. To avoid exposure to these compounds, the World Health Organization recommends consuming coffee from safe commodities.
Butter Coffee and Keto Diet
The article also introduces butter coffee, a bitter and savory blend of coffee and butter often consumed as a breakfast substitute by those following a high-fat, low-carb keto diet. Although butter coffee provides stable and long-lasting energy without a sugar crash, it is not suitable for everyone. It can cause discomfort in the stomach and other digestive problems, especially when consumed as the first meal of the day.