An endocrinologist notes the potential downsides of regular coffee drinking. The doctor points out that coffee remains popular largely because it provides a quick boost in alertness and energy, but frequent use can lead to dependency. When caffeine intake drops suddenly, headaches, fatigue, and lethargy may follow, and over time the body can build up tolerance, making withdrawal symptoms more pronounced. Some individuals may experience a clearer sense of wakefulness yet still struggle with restlessness or mood fluctuations when caffeine is reduced or stopped.
Excessive coffee consumption can also disrupt sleep, trigger anxious feelings, and upset the digestive system. The doctor emphasizes that sensitivity to caffeine varies from person to person, with some metabolizing caffeine quickly and not noticing sleep disturbances even when having a cup near bedtime. In contrast, others may feel restless or have trouble falling asleep after small amounts of coffee late in the day.
For people with elevated blood pressure or more severe hypertension, it is advisable to monitor caffeine intake. The clinician warns that drinking two or more cups of coffee daily could raise the risk of cardiovascular events in susceptible individuals, and this may be important for patients with preexisting heart conditions or those at higher risk for stroke.
Earlier research from Karolinska University in Sweden suggested that caffeinated beverages might contribute to weight management in some contexts, though results are not universally consistent and depend on overall diet and activity. This area of study continues to be explored by nutrition researchers and healthcare professionals alike.
Doctors have also discussed how coffee affects the body when consumed on an empty stomach. Without food, caffeine absorption can be more rapid, which may intensify symptoms such as jitteriness or stomach discomfort in certain people. Those who experience such reactions might consider pairing coffee with a small meal or choosing beverages with lower caffeine content as a precaution.
Ultimately, individuals should assess their own tolerance and health goals when deciding how much coffee to drink. Moderation, awareness of personal sensitivity, and consultation with a healthcare provider are prudent steps for anyone managing blood pressure, sleep quality, or digestive health. [Cited: Endocrinologist Olga Voevodina]