A study published in *Nature Neuroscience* by Johns Hopkins University reveals that drinking black coffee activates benefits beyond caffeine's alertness, linking it to cellular protection and altered brain activity.
Researchers found that unsweetened coffee specifically enhances connectivity in the hippocampus—the brain’s center for memory and learning. This boost in neuronal communication can improve attention and memory consolidation, provided consumption is moderate.
Metabolically, black coffee may support weight management by increasing thermogenesis and raising the body’s basal metabolic rate. These effects elevate energy expenditure and accelerate nutrient processing, potentially aiding weight loss when paired with diet and exercise.
The coffee bean’s concentrated antioxidants help reduce oxidative damage to tissues, while moderate intake is associated with better vascular health and a lower risk of arterial issues. Additionally, unsweetened coffee can suppress cavity-causing bacteria in the mouth—a benefit negated by adding sugar or sweeteners, which also promote enamel erosion.
The authors stress that these advantages are tied to moderate consumption, as excess caffeine carries risks. They also note that coffee’s chemical profile varies; the quality, origin, and preparation method (such as choosing ground over instant) can influence its effects, making traditional brewing generally preferable.
