A recent study from the United States reveals that the morning coffee habit not only helps wake you up but may also reduce the risk of death from cardiovascular disease by up to 30%. However, if you spread your coffee consumption throughout the day, this benefit disappears.
The research, which tracked over 40,000 individuals for nearly a decade, found that morning-only coffee drinkers had a significantly lower mortality rate than non-drinkers. They experienced a 16% reduced risk of death from all causes and, more specifically, a 31% lower risk of cardiovascular-related death—the only group to show distinct benefits in the study.

Commenting on these findings on the “1-Minute Workout” fan page, Rehabilitation Medicine Specialist Dr. Vương Tư Hằng stated: “Consuming caffeine in the afternoon or evening can disrupt your sleep cycle and melatonin production, increasing the risk of inflammation, high blood pressure, and various chronic health issues.”
According to Dr. Vương, many people unknowingly drink coffee throughout the day, unaware that later consumption is more harmful. Caffeine in the latter part of the day can hinder rest, disrupt our body’s biological clock, and negatively impact long-term health.
While previous studies have highlighted coffee’s anti-inflammatory and antioxidant properties when consumed in moderation, this new research emphasizes the critical role of timing, alongside quantity.
The recommendation is that to maximize the benefits of coffee, individuals should restrict their consumption to the morning and avoid drinking it after noon. This minimizes disruption to sleep and endogenous hormones, thereby supporting cardiovascular health and potentially extending lifespan.