Anxiety
Caffeine is a stimulant, so it stands to reason that too much caffeine can cause anxious or stressed feelings. The anxiety that can come from drinking too much coffee is backed by science, and it’s a direct result of caffeine’s effect on your hormones.
Inability to Sleep
If you’ve ever indulged in some late afternoon or evening coffee, you’ve probably noticed that it caused difficulty falling asleep or staying asleep. This effect is also backed by science, and research shows that caffeine can affect our sleep in two ways
Digestive Problems
Many people believe that the acidity of coffee can lead to stomach ulcers. Although it certainly doesn’t help, there is no substantial research that concludes there is a link between drinking coffee and experiencing ulcers. However, there are other digestive problems that can come about from drinking too much coffee.
High Blood Pressure
Coffee has long been associated with high blood pressure, so this side effect may not come as much of a surprise! However, caffeine does have varying effects on blood pressure in short- versus long-term periods.
Addiction
Like many other drugs, caffeine can become highly addictive, and many coffee drinkers, whether they know it or not, are physiologically dependent on their daily caffeine.
Elevated Heart Rate
As we mentioned before, caffeine can lead to elevated levels of adrenaline in your bloodstream. While the effects of this hormonal spike are numerous, one of the most critical is an elevated heart rate.
Tiredness
Most people know that caffeine is a stimulant, and the majority of coffee drinkers recognize the stimulating effects coffee can have. However, caffeine can also lead to increased muscle fatigue and overall feelings of tiredness.
Irregular Bathroom Use
Another effect of coffee that is commonly experienced and reported by coffee drinkers is an increase in urination and the urgency to urinate. This effect is also backed by science.