The symptoms of caffeine overdoes are restlessness, anxiety, trembling, and sweating. Large amount of caffeine speeds up the heart rate and can even cause cardiac arrhythmias. Caffeine reduces the blood flow to the heart and can be one of the reasons of heart failure. It also increases the amount of fatty acids in the blood.
If the coffee drinking is exaggerated (4 or more cups of coffee a day), it can cause insomnia and constant fatigue, because the body is no longer able to perceive the coffee as invigorating and energizing drink, but gets tired of it. As a result, it may be difficult to fall asleep in the evening, and you can wake up at night, not being able to fall asleep again.
Scientists have figured out that drinking 3 or more cups of coffee a day, quality of sperm significantly worsens, so there may be difficulties with conceiving. You should be careful if you use some medications, as, for example, analgesic and antipyretic agent “Paracetamol” significantly strengthens the effects of coffee, and other medications that contain paracetamol in combination with large amounts of caffeine can cause serious liver damages.
Coffee can greatly change the mood – if you drink more than 3 to 4 cups of coffee a day (500 and more milligrams of caffeine a day), your brain activity, reaction speed, and concentration will be highly activated, causing sudden mood fluctuations, bursts of anger, or in stark contrast – a sudden and unexplainable phlegm.
Coffee has harmful effects on the kidneys and increases the urine output. Using coffee, the body with the urine loses more calcium, so it is very important to consume products that contain calcium, for example, milk and its products, thereby compensating its loss.
Scientists have figured out the fact that coffee drinkers are at greater risk of developing rheumatoid arthritis – arthritis is systematically flammable disorders of leg and arm small joints, which causes erosion of bones and cartilages or, in other words, depletion of cells. Once again, it should be mentioned that the amount of coffee is the most important, as those who drink 4 or more cups of coffee a day have greater risk of developing rheumatoid arthritis. The amount like this increases the chance of developing the disease by 15 or even more times, compared to people who do not use coffee at all.
Frequent coffee drinking makes our teeth yellowish as well as adversely affects the colour of skin.