What happens when you drink a lot of black coffee?

Black coffee is unadulterated, made from ground coffee beans and water, without milk, cream, sugar or other additives. This is a popular drink, has a rich flavor, minimal calories and provides energy to the body.

Drinking black coffee in moderation, about 3-4 cups a day, can improve concentration and boost metabolism. It is also rich in antioxidants that help fight free radicals, reducing the risk of chronic diseases. But drinking in excess or under certain circumstances can cause negative effects.

Causes digestive problems

Black coffee is acidic, which can irritate the stomach lining, leading to digestive problems. People with sensitive digestive systems who drink this drink on an empty stomach can easily experience acid reflux, heartburn or indigestion.

Affects sleep cycle

One of the main ingredients in coffee is caffeine – a stimulant that can interfere with sleep if consumed late in the day. Drinking too much black coffee also risks leading to insomnia or disrupting the sleep cycle.

Anxiety, stress

The stimulant caffeine can cause the release of adrenaline – a hormone that helps increase alertness. But consuming too much can have the opposite effect, creating feelings of anxiety and restlessness in some people. People with anxiety disorders should avoid drinking black coffee.

Dehydration

Black coffee has diuretic properties, increasing urine production, leading to dehydration if consumed in excess. This side effect can be overcome by drinking enough water while drinking coffee.

Affects bones

Drinking black coffee regularly can indirectly cause decreased bone density by hindering calcium absorption. When calcium is not absorbed well, the body is able to compensate by withdrawing calcium from the bones, leading to bone density decreasing over time. People who drink too much coffee may urinate more, leading to increased calcium excretion.

Heart beats fast

Caffeine in black coffee can stimulate the central nervous system, leading to increased heart rate or irregular heartbeat. People with heart disease should limit it because using too much can be risky.

Temporary increase in blood pressure

Besides increasing heart rate, drinking black coffee can also cause a temporary increase in blood pressure. Caffeine is a stimulant that constricts blood vessels, making it harder for blood to circulate. This contraction can lead to short-term increases in blood pressure. However, the effects of caffeine on blood pressure vary from person to person, depending on factors such as caffeine tolerance or overall health status.

Drinking coffee in moderation is generally safe for most people. However, people with high blood pressure should be aware of this side effect of coffee and consult a doctor before using it.