Coffee's Life-Extending Powers: Timing Matters More Than Quantity
Coffee is one of the world's most popular beverages, but did you know that when you drink it may determine whether it acts as medicine or a burden? Spanish cardiologist Aurelio Rojas recently stated on social media that coffee does have "remarkable life-extending powers"—but only if you drink it at the right time.
Morning Coffee Cuts Cardiovascular Death Risk by 31%
Rojas cited a study published in the European Heart Journal, which showed:
- People who drink coffee in the morning have up to a 31% lower risk of dying from cardiovascular issues
- Premature death risk is reduced by 17%
This finding suggests that coffee's protective effects are closely tied to timing, not just quantity.
Why Afternoon or All-Day Coffee Drinking May Be Harmful
Rojas warns that consuming caffeinated coffee later in the day can have negative metabolic effects and cause sleep problems. He specifically notes that drinking coffee throughout the day is "somewhat counterproductive."
Caffeine has a half-life of about 5-6 hours, so afternoon or evening consumption can interfere with melatonin secretion and disrupt sleep quality. Poor sleep is itself closely linked to hypertension, diabetes, obesity, and other metabolic diseases—potentially offsetting coffee's health benefits.
What Are Coffee's Health Benefits?
Current evidence links moderate coffee consumption to the following health benefits:
- Reduced risk of Parkinson's disease
- Reduced risk of type 2 diabetes
- Reduced risk of Alzheimer's disease
- Lower risk of severe liver and kidney problems
Some of these benefits come from caffeine, but other components in coffee—such as chlorogenic acid and polyphenol antioxidants—also play important roles.
The "Individualized" Principle of Coffee Drinking
Rojas emphasizes that coffee's health effects depend on multiple factors:
- Amount consumed: Moderation is key; excess can trigger palpitations and anxiety
- Age: Caffeine metabolism capacity varies across age groups
- Biological sex: Sex influences caffeine metabolism speed
- Drug interactions: Certain medications interact with caffeine
- Genetics: CYP1A2 gene variants affect caffeine metabolism efficiency
Practical Tips: How to Drink Coffee Wisely
- Timing: Drink in the morning (ideally before noon)
- Moderation: 2-3 cups per day for healthy adults
- Avoid additives: Limit sugar and cream to reduce extra calorie intake
- Listen to your body: Reduce intake if you experience palpitations, insomnia, or anxiety
Want to track how caffeine intake affects your sleep and heart rate more precisely? The Xiaoshu Health App can sync with Apple Health to track relevant metrics, helping you understand caffeine's real impact on your body and find the drinking rhythm that suits you best.