Tag: Caffeine science

According to research from the American Medical Association, caffeine stimulates dopamine, a key neurotransmitter that influences pleasure, motivation, and learning. This chemical interaction is the core reason coffee has become synonymous with a much-needed energy boost and mood enhancement.

According to research published in the *European Heart Journal*, adults who drink coffee between 4 a.m. and noon may have a lower risk of death from cardiovascular causes. This exciting finding is just one reason why coffee in the morning is so good for you, blending biological benefits with powerful psychological effects.

Over 80% of the world's population consumes a caffeinated product daily, but many are surprised to learn that caffeine is not a source of nutritional energy like food. Instead of providing calories, caffeine is a psychoactive drug that creates the *feeling* of energy by stimulating the central nervous system. It is the chemical energy stored within the caffeine molecule that drives this stimulating process, not the type of potential or kinetic energy associated with physics.

Contrary to a common belief, the crema on your espresso contains only a minimal amount of the total caffeine. This rich, golden-brown layer is actually more of an indicator of freshness and proper brewing technique than a potent source of stimulation. Understanding the science behind crema is key to answering the question, "Does coffee crema have caffeine?".

Over 2.25 billion cups of coffee are consumed globally every day, but few people consider the most effective way to drink it for optimal results. The seemingly simple question, "Should I chug or sip coffee?" hides a complex answer involving caffeine absorption, energy management, and personal tolerance.

Studies show that your body experiences a natural cortisol peak shortly after waking, a biological process designed to make you feel alert. Understanding this rhythm is key to discovering **why coffee 90 minutes after waking** can transform your energy levels and prevent the mid-day slump.