m*******g
发帖数: 7050 | 1 基本上我还是承认自己最近比较懒的。。。但是戒咖啡真的影响很大。。。
所以今天早上泡了一杯，闻味道，然后打算继续认真写，晚上汇报斗争成果。。。 | u***l
发帖数: 2997 | 2 Decaf吧。俺也是忽然有一天对咖啡敏感起来，奇怪的是喝茶没事。不过咖啡染牙齿，
少喝为好，每次喝完刷牙太麻烦。 | F******7
发帖数: 4765 | 3
你这不是改正，是牺牲啊。为小说事业牺牲小我，成就大我。
谈谈看，有没有比以前喝得更猛？
【在 m*******g 的大作中提到】
: 基本上我还是承认自己最近比较懒的。。。但是戒咖啡真的影响很大。。。
: 所以今天早上泡了一杯，闻味道，然后打算继续认真写，晚上汇报斗争成果。。。
| m*******g
发帖数: 7050 | | F******7
发帖数: 4765 | 5
http://www.popsci.com/science/article/2013-02/why-coffee-good-y
7 Reasons Why Coffee Is Good For You
By Kris Gunnars/ Authority Nutrition Posted 02.21.2013 at 11:00 am 25
Comments
Coffee beans Dreamstime
Coffee isn’t just warm and energizing, it may also be extremely good for
you.
In recent years and decades, scientists have studied the effects of coffee
on various aspects of health and their results have been nothing short of
amazing.
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 (1 , 2 ).
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 (3 ).
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.
Espresso
Espresso: Evan Swigart/Wikimedia Commons
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 (4 , 5 , 6
).
Caffeine can also improve athletic performance by several mechanisms,
including by mobilizing fatty acids from the fat tissues (7 , 8 ).
In two separate meta-analyses, caffeine was found to increase exercise
performance by 11-12% on average (9 , 10 ).
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% (11 , 12 , 13 , 14 ).
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 (15 ).
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 (16 , 17 , 18 ).
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% (19 , 20 , 21 , 22 ).
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 (23 , 24 , 25 ).
Coffee may also lower the risk of liver cancer by around 40% (26 , 27 ).
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%.
6. Coffee May Decrease Your Risk of Dying
Many people still seem to think that coffee is unhealthy.
This isn’t surprising though, since it is very common for conventional
wisdom to be at exact odds with what the actual studies say.
In two very large prospective epidemiological studies, drinking coffee was
associated with a lower risk of death by all causes (28 ).
This effect is particularly profound in type II diabetics, one study showing
that coffee drinkers had a 30% lower risk of death during a 20 year period
(29 ).
Bottom Line: Coffee consumption has been associated with a lower risk of
death in prospective epidemiological studies, especially in type II
diabetics.
7. Coffee is Loaded With Nutrients and Antioxidants
Coffee isn’t just black water.
Many of the nutrients in the coffee beans do make it into the final drink,
which actually contains a decent amount of vitamins and minerals.
A cup of coffee contains (30 ):
6% of the RDA for Pantothenic Acid (Vitamin B5).
11% of the RDA for Riboflavin (Vitamin B2).
2% of the RDA for Niacin (B3) and Thiamine (B1).
3% of the RDA for Potassium and Manganese.
May not seem like much, but if you drink several cups of coffee per day then
this quickly adds up.
But this isn’t all. Coffee also contains a massive amount of antioxidants.
In fact, coffee is the biggest source of antioxidants in the western diet,
outranking both fruits and vegetables combined (31 , 32 , 33 ).
Bottom Line: Coffee contains a decent amount of several vitamins and
minerals. It is also the biggest source of antioxidants in the modern diet.
Take Home Message
Even though coffee in moderate amounts is good for you, drinking way too
much of it can still be harmful.
I’d also like to point out that many of the studies above were
epidemiological in nature. Such studies can only show association, they can
not prove that coffee caused the effects.
To make sure to preserve the health benefits, don’t put sugar or anything
nasty in your coffee! If it tends to affect your sleep, then don’t drink it
after 2pm.
At the end of the day, it does seem quite clear that coffee is NOT the
villain it was made out to be.
If anything, coffee may literally be the healthiest beverage on the planet.
This article was republished with permission from Authority Nutrition.
【在 m*******g 的大作中提到】
: 可是板斧啊，我每天疯了一样想咖啡啊。。。
| m*******g
发帖数: 7050 | | m*******g
发帖数: 7050 | 7 基本上我还是承认自己最近比较懒的。。。但是戒咖啡真的影响很大。。。
所以今天早上泡了一杯，闻味道，然后打算继续认真写，晚上汇报斗争成果。。。 | u***l
发帖数: 2997 | 8 Decaf吧。俺也是忽然有一天对咖啡敏感起来，奇怪的是喝茶没事。不过咖啡染牙齿，
少喝为好，每次喝完刷牙太麻烦。 | F******7
发帖数: 4765 | 9
你这不是改正，是牺牲啊。为小说事业牺牲小我，成就大我。
谈谈看，有没有比以前喝得更猛？
【在 m*******g 的大作中提到】
: 基本上我还是承认自己最近比较懒的。。。但是戒咖啡真的影响很大。。。
: 所以今天早上泡了一杯，闻味道，然后打算继续认真写，晚上汇报斗争成果。。。
| m*******g
发帖数: 7050 | | F******7
发帖数: 4765 | 11
http://www.popsci.com/science/article/2013-02/why-coffee-good-y
7 Reasons Why Coffee Is Good For You
By Kris Gunnars/ Authority Nutrition Posted 02.21.2013 at 11:00 am 25
Comments
Coffee beans Dreamstime
Coffee isn’t just warm and energizing, it may also be extremely good for
you.
In recent years and decades, scientists have studied the effects of coffee
on various aspects of health and their results have been nothing short of
amazing.
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 (1 , 2 ).
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 (3 ).
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.
Espresso
Espresso: Evan Swigart/Wikimedia Commons
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 (4 , 5 , 6
).
Caffeine can also improve athletic performance by several mechanisms,
including by mobilizing fatty acids from the fat tissues (7 , 8 ).
In two separate meta-analyses, caffeine was found to increase exercise
performance by 11-12% on average (9 , 10 ).
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% (11 , 12 , 13 , 14 ).
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 (15 ).
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 (16 , 17 , 18 ).
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% (19 , 20 , 21 , 22 ).
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 (23 , 24 , 25 ).
Coffee may also lower the risk of liver cancer by around 40% (26 , 27 ).
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%.
6. Coffee May Decrease Your Risk of Dying
Many people still seem to think that coffee is unhealthy.
This isn’t surprising though, since it is very common for conventional
wisdom to be at exact odds with what the actual studies say.
In two very large prospective epidemiological studies, drinking coffee was
associated with a lower risk of death by all causes (28 ).
This effect is particularly profound in type II diabetics, one study showing
that coffee drinkers had a 30% lower risk of death during a 20 year period
(29 ).
Bottom Line: Coffee consumption has been associated with a lower risk of
death in prospective epidemiological studies, especially in type II
diabetics.
7. Coffee is Loaded With Nutrients and Antioxidants
Coffee isn’t just black water.
Many of the nutrients in the coffee beans do make it into the final drink,
which actually contains a decent amount of vitamins and minerals.
A cup of coffee contains (30 ):
6% of the RDA for Pantothenic Acid (Vitamin B5).
11% of the RDA for Riboflavin (Vitamin B2).
2% of the RDA for Niacin (B3) and Thiamine (B1).
3% of the RDA for Potassium and Manganese.
May not seem like much, but if you drink several cups of coffee per day then
this quickly adds up.
But this isn’t all. Coffee also contains a massive amount of antioxidants.
In fact, coffee is the biggest source of antioxidants in the western diet,
outranking both fruits and vegetables combined (31 , 32 , 33 ).
Bottom Line: Coffee contains a decent amount of several vitamins and
minerals. It is also the biggest source of antioxidants in the modern diet.
Take Home Message
Even though coffee in moderate amounts is good for you, drinking way too
much of it can still be harmful.
I’d also like to point out that many of the studies above were
epidemiological in nature. Such studies can only show association, they can
not prove that coffee caused the effects.
To make sure to preserve the health benefits, don’t put sugar or anything
nasty in your coffee! If it tends to affect your sleep, then don’t drink it
after 2pm.
At the end of the day, it does seem quite clear that coffee is NOT the
villain it was made out to be.
If anything, coffee may literally be the healthiest beverage on the planet.
This article was republished with permission from Authority Nutrition.
【在 m*******g 的大作中提到】
: 可是板斧啊，我每天疯了一样想咖啡啊。。。
| m*******g
发帖数: 7050 | | H******9
发帖数: 8087 | 13 试着喝果汁吧，为事业拼搏不能以牺牲身体为代价啊 | F******7
发帖数: 4765 | |
|
