Ramai penggemar kopi hanya tahu bahawa kopi mengandungi caffein dan tidak bagus untuk kesihatan. Namun sebaliknya, terdapat 5 rahsia kopi yang anda perlu tahu bahawa, ianya baik untuk anda.
Here are 7 reasons why coffee may actually be one of the healthiest beverages on the planet.
1. Coffee Can Make You Smarter
Coffee doesn't just keep you awake, it may literally make you smarter as well.
The active ingredient in coffee is caffeine, which is a stimulant and the most commonly consumed psychoactive substance in the world.
Caffeine's primary mechanism in the brain is blocking the effects of an inhibitory neurotransmitter called Adenosine.
By blocking the inhibitory effects of Adenosine, caffeine actually increases neuronal firing in the brain and the release of other neurotransmitters like dopamine and norepinephrine.
Many controlled trials have examined the effects of caffeine on the brain, demonstrating that caffeine can improve mood, reaction time, memory, vigilance and general cognitive function.
Bottom Line: Caffeine potently blocks an inhibitory neurotransmitter in the brain, leading to a net stimulant effect. Controlled trials show that caffeine improves both mood and brain function.
2. Coffee Can Help You Burn Fat and Improves Physical Performance
There's a good reason why you will find caffeine in most commercial fat burning supplements.
Caffeine, partly due to its stimulant effect on the central nervous system, both raises metabolism and increases the oxidation of fatty acids.
Caffeine can also improve athletic performance by several mechanisms, including by mobilizing fatty acids from the fat tissues.
In two separate meta-analyses, caffeine was found to increase exercise performance by 11-12% on average.
Bottom Line: Caffeine raises the metabolic rate and helps to mobilize fatty acids from the fat tissues. It can also enhance physical performance.
3. Coffee May Drastically Lower Your Risk of Type II Diabetes
Type II diabetes is a lifestyle-related disease that has reached epidemic proportions, having increased 10-fold in a few decades and now afflicting about 300 million people.
This disease is characterized by high blood glucose levels due to insulin resistance or an inability to produce insulin.
In observational studies, coffee has been repeatedly associated with a lower risk of diabetes. The reduction in risk ranges from 23% all the way up to 67%.
A massive review article looked at 18 studies with a total of 457.922 participants. Each additional cup of coffee per day lowered the risk of diabetes by 7%. The more coffee people drank, the lower their risk.
Bottom Line: Drinking coffee is associated with a drastically reduced risk of type II diabetes. People who drink several cups per day are the least likely to become diabetic.
4. Coffee May Lower Your Risk of Alzheimer's and Parkinson's
Not only can coffee make you smarter in the short term, it may also protect your brain in old age.
Alzheimer's disease is the most common neurodegenerative disorder in the world and a leading cause of dementia.
In prospective studies, coffee drinkers have up to a 60% lower risk of Alzheimer's and dementia.
Parkinson's is the second most common neurodegenerative disorder, characterized by death of dopamine-generating neurons in the brain. Coffee may lower the risk of Parkinson's by 32-60%.
Bottom Line: Coffee is associated with a much lower risk of dementia and the neurodegenerative disorders Alzheimer's and Parkinson's.
5. Coffee May be Extremely Good For Your Liver
The liver is a remarkable organ that carries out hundreds of vital functions in the body.
It is very vulnerable to modern insults such as excess consumption of alcohol and fructose.
Cirrhosis is the end stage of liver damage caused by diseases like alcoholism and hepatitis, where liver tissue has been largely replaced by scar tissue.
Multiple studies have shown that coffee can lower the risk of cirrhosis by as much as 80%, the strongest effect for those who drank 4 or more cups per day.
Coffee may also lower the risk of liver cancer by around 40% .
Bottom Line: Coffee appears to be protective against certain liver disorders, lowering the risk of liver cancer by 40% and cirrhosis by as much as 80%.