Table of contents:
- WATER BALANCE
- MOOD AND RATE OF REACTION
- HEALTHY VESSELS
- ANTI-CANCEROGENIC EFFECTS
- DIABETES PREVENTION
Video: Let's Go Drink Some Coffee? - Reviews
It looks like the longstanding debate about the dangers of coffee is over. Numerous studies in recent years have convincingly proven the benefits of coffee.
They say that coffee not only does not quench thirst, but, on the contrary, increases dehydration, so every cup of coffee you drink must be "compensated" with the same amount of water. Scientists from the University of Birmingham set out to test this statement. In the first part of the experiment, the participants drank only coffee, and in the second, coffee and the same amount of water. No difference in water exchange was found among the subjects.
It has long been noticed that caffeine affects insect memory. The nectar of some citrus fruits contains caffeine, and bees collecting nectar from these plants improve memory. American scientists have studied the effect of coffee on human memory. Participants in the experiment took both placebo and caffeinated pills. On the day of taking the pills, they were shown pictures, and the next day - the same pictures, as well as new ones. Participants were required to separate the new pictures from the old ones. Those who took caffeine performed significantly better on the task.
MOOD AND RATE OF REACTION
The 68 candidates for the elite squad of fur seals were divided into two groups: some received caffeine tablets, in various doses, and others received a placebo. The experiment began after 72 hours of hellish training without a minute of sleep. One hour and eight hours after taking the pills, scientists tested the recruits for reaction speed, memory, mood, shooting accuracy and other abilities. Caffeine significantly improved all metrics, except for accuracy. The greatest effect occurred after an hour, but lasted for eight hours.
The meta-study analyzed data from 36 experiments with a total of more than a million participants. Among them there were 36,300 people with cardiovascular diseases. It turned out that among those who drink three to five cups of coffee daily, there are fewer "cores". In addition, studies by Swedish and Korean scientists have shown that drinking two to six cups of coffee a day reduces the risk of stroke.
Several studies - Swedish, Chinese and Italian - have independently shown that moderate coffee consumption reduces the risk of liver cancer. A meta-analysis of 59 studies found that overall coffee reduced the risk of all types of cancer.
Coffee is a preventive measure against Alzheimer's disease. The drink has been tested on mice for a long time and a consistently positive effect has been noticed - mice are better at passing tests on intelligence and memory (but only if they are given enough caffeine). In humans, the effect occurs when drinking five cups of coffee. A Finnish study found that drinking four to five cups of coffee daily after age 40 results in a 60-70% reduction in the risk of Alzheimer's by age 70. Chinese and American scientists have shown that three cups of coffee provide some protection against the occurrence of Parkinson's disease.
Coffee consumption is associated with a significant reduction in the risk of developing type 2 diabetes. Researchers claim two to three cups reduce the risk of developing this disease by 12%, and a decrease of almost 30% is observed in those who drink at least six to seven cups a day. It has recently been discovered that it does not matter whether caffeine is in the coffee or not. This is probably due to the large amount of polyphenols found in coffee. One of them appears to slow down the absorption of glucose.
A study of more than 50,000 women showed that two to three cups of coffee a day reduced the risk of depression by 15%, and four or more cups by 20%. This is a very significant value: according to statistics, every fifth woman is prone to or suffers from depression. So a cup of espresso may well support you in difficult times.
Still, coffee is not a panacea or even a medicine. It is a wonderful, invigorating and aromatic drink that should be enjoyed without being tormented by remorse. It is still not worth bringing yourself to the point of being screwed up from a dozen cups, just as you do not need to give it to children and drink more than two cups a day to pregnant women.