Coffee is good for your health! A study at the University of Southampton, led by Robin Pool, a public health specialist, published Wednesday (November 22nd) in the British Medical Journal, reveals this. It compiles the results of more than 200 previous studies (meta-analysis). Scientists recommend drinking One cup of coffee a day (except for pregnant women or individuals prone to fractures), to reduce the risk of diabetes, liver disease, dementia, or even the occurrence of certain cancers.
This publication is not the first to demonstrate the beneficial influences of coffee. Over the past decade, numerous studies have confirmed the positive effects of safe coffee, including the prevention of cancer or cardiovascular disease.
- Coffee benefits for brain
- Coffee benefits for skin
- Coffee benefits for heart
- Coffee benefits weight loss
- Coffee benefits for mood
Coffee benefits for brain
The stimulating effect of coffee comes largely from the way it acts on the adenosine receptors in the neuronal membrane. Adenosine is a neuromodulator of the central nervous system that has specific receptors. When adenosine binds to its receptors, neuronal activity slows down, and you feel sleepy. Adenosine therefore facilitates sleep and dilates the blood vessels, probably to ensure good oxygenation during sleep.
Caffeine acts as an antagonist of adenosine receptors. This means that it binds to these receptors and prevents adenosine from lodging and from acting as a “brake”. The activity of neurons is accelerated. The activation of many neuronal circuits by caffeine also causes the pituitary gland to secrete hormones that give the adrenal glands the power to produce more adrenaline, which is a stress hormone.
Adrenaline is a “fight or flight hormone”, so it increases your level of attention and gives your nervous system as a whole extra energy. This is exactly the effect coffee drinkers are looking for. In general, every cup of coffee has a certain stimulating effect. This effect can last for several hours and adrenaline and other stress markers can remain high until the end of the day, for a little coffee drunk in the morning.
Coffee benefits for skin
Coffee is a very effective means of defense against the famous free radicals, which attack our skin on a daily basis. Caused by pollution, fatigue, tobacco, sun, screens and many other factors, they are responsible for oxidation (which would cause 4 wrinkles out of 5), as well as a loss of hyaluronic acid. a miracle molecule that ensures hydration, suppleness and firmness to our skin.
The antioxidants mainly in coffee, polyphenols, are very powerful and have the advantage of being very well assimilated by the body. They thus preserve us from skin aging (wrinkles, dryness, loss of firmness, appearance of spots, irritations, gray mine …).
Tip: ground coffee can be used as a facial and body scrub to rid the skin of dead skin cells, ensuring a soft skin and a radiant complexion.
Coffee benefits for heart
Cardiovascular disease is now the leading cause of death in developed countries. These diseases affect the heart, brain, and arteries. A healthy lifestyle can help to prevent them by controlling smoking, excess cholesterol, salt, overweight and sedentary lifestyle.
In 2004, of the 871,517 people with cardiovascular disease in the United States, 450,000 died, of whom about 325,000 suffered from sudden accidents (infarction / heart attack).
The major factor in cardiovascular disease is hypertension, which is responsible for heart attacks and strokes. We talk about high blood pressure, when, at several intervals and at rest, the systolic pressure is greater than 14 (140 mm of mercury) and the diastolic pressure of 9 (90 mm of mercury). There is no miracle cure, apart from drug prevention. Most often, these diseases are favored by heredity but also by a diet rich in fats and salt, excess weight, a lack of exercise, stress and still smoking.
The prevention of these pathologies starts very young, thanks to physical exercise and a healthy diet. Moreover, there is growing advocacy of the Cretan diet (based on olive oil), because in this country, there are less these diseases.
According to an epidemiological study, coffee reduces the risk of death from cardiovascular diseases. A study of a sample of seniors over the age of 65 who regularly drink coffee shows that they are less likely to die from cardiovascular disease than those who drink very little or none at all.
Coffee is rich in antioxidants and it would reduce the risk of coronary inflammation. Of course, these people should not suffer from severe hypertension, caffeine is not recommended for these people because it creates tachycardia.
According to the researchers in this study, coffee reduces the causes of death by 53%.
Coffee benefits weight loss
Caffeine, which mainly consists of coffee, acts as a fat burner. It will operate in two distinct ways:
by promoting thermogenesis: it will lead to an increase in body temperature and thus the rate of oxidation of fat in adipose tissue. Simply put, it causes burning of your fat.
by causing a phenomenon of lipolysis: in parallel with the increase in the activity of the nervous system, the fatty acids will be released by the action of caffeine to be burned . For simplicity, thanks to this so-called “lipolytic” effect, your fat is destocked, which makes them available for destruction.
Of course, drinking coffee to lose weight is not enough, this effect burns fat being all the more effective coupled with a balanced diet but especially physical activity.
This synergy with the practice of a sport has also been revealed by several studies, one of them showing a significantly higher weight loss in athletes compared to non-athletes who have consumed caffeine.
This efficacy would be observed both in people with normal corpulence and in obese people . Good news for those who have lost all hope of losing their weight, even important!
Another study, conducted on cyclists who had consumed coffee 1 hour before the effort, shows an effect of caffeine upstream of the sport. Caffeine not only acts on weight loss but also on strength and endurance , to accentuate the efforts provided during your sport and therefore weight loss!
Coffee benefits for mood
Coffee is good for morale! Often accused of being bad for the health, too stimulating for the heart and able to deprive us of sleep, the coffee nevertheless has qualities. Drink coffee to wake up, give yourself a whip yes, but not only. American researchers have studied this drink, the most consumed in France after water. Drinking four cups of coffee a day or more would reduce the risk of becoming depressed by 10%. Caffeine is the main cause of this “well-being”. In contrast, sodas, already criticized for their high caloric intake, would increase by 30% the risk of sinking into depression. Aspartame light drinks would accelerate the harmful effect of sodas on the mood.