A scientific study has shown that coffee has a number of beneficial health properties, including helping to reduce stress levels and lowering the risk of Alzheimer's disease.
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According to the results of an experiment conducted on volunteers who spent some time near a cup of freshly brewed coffee, the aroma of the coffee contributed to reducing stress levels. Participants' indicators of anxiety, fatigue, and tension decreased, while their relaxation index increased. However, their heart rate remained almost stable.
The results also showed that people who drank two to three cups of coffee daily performed better on memory and reasoning tests compared to those who preferred other beverages. Furthermore, consuming one to two cups of freshly brewed coffee daily may be associated with a reduced risk of Alzheimer's disease.
According to scientists, this effect is linked to phenylindanes, substances that form during the roasting of coffee beans, with their concentration increasing as the roasting temperature rises. Coffee beans also contain polyphenols, which help neutralize free radicals that can damage the body's cells and tissues.
According to researchers, these compounds may offer protection against a number of diseases, including some types of cancer. Polyphenols may also help reduce cholesterol buildup on the walls of blood vessels, thus helping to maintain their elasticity and improve blood flow.
In addition, the study found that coffee drinkers have a 23% lower risk of acute kidney failure, suggesting that coffee may improve blood flow to the kidneys and provide a protective effect. Coffee consumption is also associated with a nearly 25% reduction in the risk of liver cancer.
Coffee beans also contain chlorogenic acid, which slows the release of glucose into the bloodstream after carbohydrate consumption, potentially helping to reduce the risk of developing type 2 diabetes.
Roasting coffee beans also produces niacin, the amount of which increases with the degree of roasting. Nicotinic acid contributes to healthy blood vessels and may help protect nerve cells from deterioration of the myelin sheath, which in turn may be linked to a reduced risk of Alzheimer's disease.
This compound may also contribute to faster signal transmission along neural pathways, which could explain some differences in response times among people who regularly consume coffee. Nicotinic acid also plays a role in the body's production of serotonin and dopamine, two neurotransmitters associated with mood regulation and feelings of well-being.
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