Here’s What Happens to Your Body When You Drink Coffee

Caffeine is a favorite stimulant by many of the world’s population today, and this is due in no small part to the aromas and tastes offered by coffee. The effects of this much loved drink are very desirable for the working population indeed, inducing alertness and a sharpness of mind.

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Some people even claim that they are unable to function without their desired brew. But what really happens to the body when you drink coffee? Read here and find out all about coffee’s journey in the body and how that affects different functions.

The heart

Coffee is very well known for its cardiovascular effects. This is because the caffeine in the drink causes an increase in the sensitivity of neural pathways, which means that electrical impulses that affect your cardiovascular system are able to pass through in an easier manner. This is why drinking coffee makes the heart beat faster, raising blood pressure by an average of 10-15%. All these things happen about 15 minutes after enjoying your cup.

The brain

Caffeine acts as a stimulant, which helps with concentration and mental function. The way the brain works is that it sends out chemicals called neurotransmitters through the synapses, which is how we are able to have a thinking process.

Caffeine serves to modulate these neurotransmitters, helping improve efficiency. This is why the brain is then able to process chemical messengers better. As a result, half an hour after drinking coffee, you will feel more mentally alert. Of course, coffee should be drunk in moderation to take advantage of the good benefits as excessive consumption can lead to restlessness and anxiety.

The eyes

Ever felt like you are able to see things more clearly after drinking coffee? This could be true as sharper vision may be a result of drinking coffee, with caffeine possibly dilating the pupils very slightly. Caffeine affects the sympathetic nervous system, responsible for unconscious activity, which leads to the activation of ultra-alert mode. As a result, more adrenaline is produced and a more focused vision could also be in effect.


Coffee is known to affect teeth with a condition described as the corn-kernel effect. This is actually the result of adding milk, sugar and other types of syrups in your drink. Coffee supposedly contains polyphenols, which help in getting rid of bacteria and oral plaque. However, as soon as sweeteners are added, their benefits backfire.

The only way you can take advantage of the polyphenols is if you drink your coffee black. Once you pour sugar and such, your teeth will just become more prone to cavities. Another way to protect your teeth is to immediately brush them after drinking and limit the time the sugars remain in your mouth.

Digestive System

For the stomach and bowels, coffee is indeed good news. This is because coffee increases the production of acids in the stomach for better digestion. In addition, coffee releases a hormone to stimulate the bowels and make them work faster and harder.


Many coffee lovers know that drinking coffee can lead to immediate trips to the bathroom. This is because coffee is a diuretic, affecting your kidneys and making them send more water through, which explains the increased need to urinate. Caffeine is not responsible in this case, as both decaf and regular brews can cause this, so it is the other molecules present in the drink which influences your bladder.

Coffee is one of the most gratifying drinks that people consume on a daily basis, with many people around the world enjoying its fragrant and stimulating effects. It is not surprising how this drink has endured throughout centuries, given its immediate effects on the body.