Determining the Optimal Time for Coffee Consumption
A beloved beverage for millions globally, coffee holds a cherished spot in the daily morning rituals of many. However, experts caution against the common practice of consuming coffee immediately upon waking, deeming it “unhealthy.”
According to insights shared by a group of experts cited by ABC News, the ideal timing for morning coffee lies approximately 90 to 120 minutes after rising from sleep. This recommendation is grounded in the understanding of cortisol, the hormone responsible for morning motivation. Dr. Evangeline Mantzioris, a nutritionist at the University of South Australia, elucidates that cortisol levels peak in the early morning but gradually decline thereafter.
“Cortisol, which stimulates and energizes you in the initial two hours after waking, diminishes over time,” explains Dr. Mantzioris. Consequently, the opportune moment to enjoy coffee is post these two hours, aligning with the decline in cortisol levels.
Dr. Mantzioris highlights the presence of adenosine, a chemical inducing sleepiness by binding to cell receptors. Contrary to immediate post-wake-up moments, adenosine’s impact intensifies later in the morning. To counteract this sleep-inducing process, Dr. Mantzioris suggests delaying coffee consumption until drowsiness sets in.
Can Coffee Be Enjoyed Later in the Day?
While consuming one or two cups of coffee before noon typically poses no threat to nighttime sleep, partaking in coffee closer to bedtime can directly interfere with falling asleep and compromise sleep quality and comfort.
Insights into Caffeine
Ian Musgrave, a molecular pharmacologist from the University of Adelaide, delves into the evolution and properties of caffeine. Originally developed by plants as a chemical defense and natural insecticide, caffeine is present in over sixty plant species, with coffee, tea, cocoa, and certain flower nectars being significant sources.
Beyond its insecticidal role, caffeine boasts notable health benefits and pharmacological effects. For instance, it contributes to treating asthma and serves as a bronchodilator in newborn incubators, expanding air passages in the lungs. As elucidated by Trigger McGuire, a pharmacologist at Bond University, caffeine acts as a stimulant, enhancing alertness, focus, metabolism, and regulating heart rate and blood pressure.
McGuire further explains that caffeine swiftly enters the central nervous system, binding to receptors involved in dopamine release— the brain’s feel-good hormone. This stimulation targets the brain’s pleasure and reward center, reducing fatigue during strenuous tasks and enabling athletes to engage in more vigorous training.
