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ramonmercado Psycho Punk
Joined: 19 Aug 2003 Total posts: 17938 Location: Dublin Gender: Male |
 Posted: 20-01-2006 18:33 Post subject: Coffee News. |
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| Quote: | Coffee 'boosts female sex drive'
Coffee could help boost a woman's sex drive, a US study says. Scientists from Southwestern University found it increased the female libido in experiments on rats.
The Pharmacology, Biochemistry and Behaviour journal study said the effect was caused by coffee stimulating the part of the brain regulating arousal.
But researchers said a similar effect was only likely to be repeated in humans who do not drink coffee regularly.
Previous research has looked into both the health benefits and consequences of coffee consumption.
Humans would have to drink 10 cups of coffee in one go to get the same effect and that is not the normal consumption level
British Coffee Association spokesman
The hot drink is linked to improving memory and reducing the risk of cancer, but studies have also suggested it increases the risk of heart disease.
In the latest research, scientists gave 108 female rats a moderate dose of caffeine before a mating test to determine if the caffeine had any effect on female behaviour.
They found that administration of caffeine shortened the amount of time it took the females to return to the males after sex for another mating session.
The study said the effects appeared to go beyond a simple boost of energy for socialising, but researchers said the effect may not be repeated in all humans.
Brain
Lead researcher Dr Fay Guarraci said: "These rats had never had caffeine before. In humans, it might enhance the sexual experience only among people who are not habitual users."
But she added the study should help improve understanding about the relationship between the brain and behaviour.
"Understanding the circuits that control this behaviour will help us understand how the brain works and what part of the brain mediates motivation because sexual behaviour is a motivative behaviour."
But a spokesman for the British Coffee Association said: "We are not that convinced by this. Humans would have to drink 10 cups of coffee in one go to get the same effect and that is not the normal consumption level.
"There are health benefits of coffee, but at this stage I do not think we can include this as one."
Story from BBC NEWS:
http://news.bbc.co.uk/go/pr/fr/-/1/hi/health/4628070.stm
Published: 2006/01/19 13:45:55 GMT
© BBC MMVI
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Edit to amend title. x2
Last edited by ramonmercado on 05-05-2012 22:48; edited 2 times in total |
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| hokum6 I am one can short of a six-pack!
Joined: 22 Apr 2005 Total posts: 842 Location: Location Location Gender: Unknown |
| Posted: 20-01-2006 23:44 Post subject: |
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No wonder Starbucks is so popular...
Cappucino, anyone?  |
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| Anonymous |
| Posted: 21-01-2006 09:51 Post subject: |
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Espresso for her, decaf for me!  |
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| Jerry_B Great Old One Joined: 15 Apr 2002 Total posts: 8265 |
| Posted: 21-01-2006 11:25 Post subject: |
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| Hmm - do they actually mean coffee or caffeine? I mean, is it something to do with caffeine when it's in coffee, or just caffeine in general? It's not all that clear from the article. |
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| sunsplash1 Fortean and Proud
cognitively purposefuly I Joined: 09 Jan 2004 Total posts: 2074 Location: The Hills, overlooking a smallish antipodean city in South Australia Gender: Unknown |
| Posted: 21-01-2006 13:59 Post subject: |
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| Great. One of my best kept secrets iis now out there... |
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| ElishevaBarsabe Really?!
Great Old One Joined: 19 Mar 2002 Total posts: 942 Location: in the fog Gender: Female |
| Posted: 23-01-2006 09:41 Post subject: Re: Coffee 'boosts female sex drive' |
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Well, it's true. The only reason it's taken science this long to find out is that most of the scientists are men!  |
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| ramonmercado Psycho Punk
Joined: 19 Aug 2003 Total posts: 17938 Location: Dublin Gender: Male |
| Posted: 27-09-2011 13:05 Post subject: |
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| Quote: | Coffee may prevent depression, scientists say
http://www.bbc.co.uk/news/health-15059266
By Michelle Roberts
Health reporter, BBC News
Coffee must contain caffeine to have the effect, say the researchers
Continue reading the main story
Related Stories
Is drinking coffee bad for you?
How much is too much coffee?
Women who drink two or more cups of coffee a day are less likely to get depressed, research suggests.
It is not clear why it might have this effect, but the authors believe caffeine in coffee may alter the brain's chemistry. Decaffeinated coffee did not have the same effect.
The findings, published in Archives of Internal Medicine, come from a study of more than 50,000 US female nurses.
The experts are now recommending more work to better understand the link.
And they say it is certainly too soon to start recommending that women should drink more coffee to boost mood.
Caffeine lift
The Harvard Medical School team tracked the health of the women over a decade from 1996 to 2006 and relied on questionnaires to record their coffee consumption.
Continue reading the main story
“
Start Quote
This fits nicely with a lot of the previous work and what we know about caffeine and the brain”
Prof Bertil Fredholm
Karolinska Institute
Just over 2,600 of the women developed depression over this time period.
More of these women tended to be non- or low-coffee drinkers rather than frequent coffee consumers.
Compared with women who drank one cup of caffeinated coffee or less per week, those who consumed two to three cups per day had a 15% decreased risk of developing depression.
Those who drank four or more cups a day cut their risk by 20%.
Regular coffee drinkers were more likely to smoke and drink alcohol and were less likely to be involved in church, volunteer or community groups. They were also less likely to be overweight and have high blood pressure or diabetes.
Even after controlling for all of these variables, the trend of increasing coffee consumption and lower depression remained.
Mounting evidence
The researchers say their findings add weight to the work of others which found lower suicide rates among coffee drinkers.
They suspect caffeine is the key player - it is known to enhance feelings of wellbeing and energy.
Continue reading the main story
How much caffeine?
There is no recommended level a person should consume
But pregnant women are advised to consume less than 200mg a day
One mug of instant coffee: 100mg
One mug of filter coffee: 140mg
One mug of tea: 75mg
One can of cola: 40mg
One 50g bar of milk chocolate: about 25mg
Source: NHS Choices
And it has a physical effect on brain function and transmission by blocking certain chemical receptors, like adenosine. But more research is needed to show if this might mean it is useful for warding off depression.
Alternatively, it might be that people with low moods chose not to drink coffee because it contained caffeine, point out the researchers. One of the common symptoms of depression is disturbed sleep, and caffeine can exacerbate this because it is a stimulant.
Too much caffeine can also increase feelings of anxiety.
Prof Bertil Fredholm, an expert in pharmacology and physiology at Sweden's Karolinska Institute, said the findings were reassuring for coffee-lovers.
"This fits nicely with a lot of the previous work and what we know about caffeine and the brain. It blocks adenosine, which produces a similar effect to increasing dopamine production. And it's becoming increasingly clear that the dopamine-rich areas of the brain are much more important in depression that previously thought.
"Despite valiant efforts to show how dangerous coffee is for us, it is not proving so.
"This removes yet another anxiety regarding caffeine use. Drunk in moderation, the evidence is strong that it is not one of the things we do that is going to damage your health." |
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| Mythopoeika Boring petty conservative
Joined: 18 Sep 2001 Total posts: 9109 Location: Not far from Bedford Gender: Unknown |
| Posted: 27-09-2011 18:59 Post subject: |
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| So...coffee is good for women...but is it good for men? |
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| ChrisBoardman Great Old One Joined: 17 May 2011 Total posts: 539 Location: Alton, Hampshire Gender: Male |
| Posted: 29-09-2011 10:01 Post subject: |
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I read in tuesdays daily express that "4 cups of coffee a day helps women beat the blues"
I though that birmingham city had reached a new low... |
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| shruggy63 Banned
Joined: 06 May 2009 Total posts: 204 Gender: Unknown |
| Posted: 29-09-2011 22:23 Post subject: |
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I vote for a 'Science in the Meeja.' thread. Although this research was probably funded by Nescafe there may be something sensible that could be found in the data?
I'm looking forward to the science report that says women enjoy being clubbed over the head & dragged into caves!
Or maybe I'll just have a quick 'Gareth Hunt'...
(Apologies to overseas readers.) |
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| ramonmercado Psycho Punk
Joined: 19 Aug 2003 Total posts: 17938 Location: Dublin Gender: Male |
| Posted: 05-05-2012 22:50 Post subject: |
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But too much coffee makes your hand shake...
| Quote: | The Physics of Spilled Coffee
http://news.sciencemag.org/sciencenow/2012/05/the-physics-of-spilled-coffee.html?ref=hp
by Jon Cartwright on 4 May 2012, 2:38 PM | 6 Comments
A drowsy blunder. Spilled coffee can be a pain to clean up, but new research shows how to keep it in the mug.
Credit: H.C. Mayer and R. Krechetnikov
Scientists face many obstacles on the path to greater knowledge. But new research suggests how to avoid one of the more common pitfalls: spilled coffee.
"I cannot say for sure if coffee spilling has been detrimental to scientific research to any significant extent," says study author Rouslan Krechetnikov, a mechanical engineer at the University of California, Santa Barbara. "But it can certainly be disruptive for a train of thought."
Krechetnikov and his graduate student Hans Mayer decided to investigate coffee spilling at a fluid dynamics conference last year when they watched overburdened participants trying to carry their drinks to and fro. They quickly realized that the physics wasn't simple. Aside from the mechanics of human walking, which depends on a person's age, health, and gender, there is the highly involved science of liquid sloshing, which depends on a complex interplay of accelerations, torques, and forces.
Back at the lab, Krechetnikov and Mayer set up an experiment: They asked a person to walk at different speeds along a straight path with a filled coffee mug in hand. The volunteer did this in one of two ways-either focusing on the coffee mug, or looking straight ahead. A camera recorded the person's motion and the mug's trajectory, while a tiny sensor on the mug recorded the instant of spillage.
A fluid's back-and-forth movement has a certain natural frequency, and this is determined by the size of its container. In their paper published last week in Physical Review E, Krechetnikov and Mayer show that everyday mug sizes produce natural frequencies that just happen to match those of a person's leg movements during walking. This means that walking alone, without any other interference, is tuned to drive coffee to oscillate in a mug. But the researchers also found that even small irregularities in a person's walking are important: These amplify the wilder oscillations, or sloshing, which bumps up the chance of a spillage.
"This is a very cool study," says Lei Ren, a specialist in the biomechanics of walking at the University of Manchester in the United Kingdom. "It reveals the sophisticated interplay between human body dynamics and the fluid mechanics of spilling coffee."
So how does one avoid a spill? Krechetnikov and Mayer's answers may not come as a big surprise. Starting your walk slower—that is, accelerating less—will help. So will leaving a decent gap between the top of the coffee and the mug's rim; this should be at least one-eighth of the mug's diameter-for a normal mug, about a centimeter should do it. But the researchers' "take home" advice is to look at what you're doing—so long as your mug isn't filled too high, a watched mug almost guarantees a clean run.
Most people will have worked out these tips for themselves, says Matthew Turner, a mathematician who specializes in liquid sloshing at the University of Surrey in Guildford, U.K. But he says the researchers' mathematical model will enable scientists to investigate different cup designs without actually making them. Engineers already know of slosh-control techniques: Tanker trucks contain inner ridges, or baffles, to damp the gasoline's motion, for instance, because too much sloshing could make a truck overturn.
But Turner believes mug makers are unlikely to take these ideas on board. "I expect it is more cost-effective for manufacturers to just provide a lid for our coffee mugs, which some already do," he says. "But this study could provide us with a fill line inside our mug below which we should keep our coffee, to minimize the chance of spillage."
However, physicist Andrzej Herczynski at Boston College thinks Krechetnikov and Mayer's study didn't go far enough. "I was personally a bit disappointed that the study is limited to cylindrical mugs … leaving out the very common curved or conical cups, such as those used for cappuccinos and lattes in Italy," he says. "Still, the paper seems at minimum destined for the Ig Nobel Prize." |
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| ramonmercado Psycho Punk
Joined: 19 Aug 2003 Total posts: 17938 Location: Dublin Gender: Male |
| Posted: 18-05-2012 23:19 Post subject: |
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Yes! Drink more coffee! Sláinte!
| Quote: | Coffee buzz: Study finds java drinkers live longer
http://medicalxpress.com/news/2012-05-coffee-java-drinkers-longer.html
May 17th, 2012 in Health
In this Thursday, Aug. 14, 2008 photo, espresso flows into a cup at a coffee house in Overland Park, Kan. A large U.S. federal study concludes people who drink coffee seem to live a little longer. Researchers saw a clear connection between cups consumed and years of life. Whether it was regular or decaf didn't matter. The results are published in the Thursday, May 17, 2012 New England Journal of Medicine. (AP Photo/Orlin Wagner)
One of life's simple pleasures just got a little sweeter. After years of waffling research on coffee and health, even some fear that java might raise the risk of heart disease, a big study finds the opposite: Coffee drinkers are a little more likely to live longer. Regular or decaf doesn't matter.
The study of 400,000 people is the largest ever done on the issue, and the results should reassure any coffee lovers who think it's a guilty pleasure that may do harm.
"Our study suggests that's really not the case," said lead researcher Neal Freedman of the National Cancer Institute. "There may actually be a modest benefit of coffee drinking."
No one knows why. Coffee contains a thousand things that can affect health, from helpful antioxidants to tiny amounts of substances linked to cancer. The most widely studied ingredient - caffeine - didn't play a role in the new study's results.
It's not that earlier studies were wrong. There is evidence that coffee can raise LDL, or bad cholesterol, and blood pressure at least short-term, and those in turn can raise the risk of heart disease.
Even in the new study, it first seemed that coffee drinkers were more likely to die at any given time. But they also tended to smoke, drink more alcohol, eat more red meat and exercise less than non-coffee-drinkers.
Once researchers took those things into account, a clear pattern emerged: Each cup of coffee per day nudged up the chances of living longer.
The study was done by the National Institutes of Health and AARP. The results are published in Thursday's New England Journal of Medicine.
Careful, though - this doesn't prove that coffee makes people live longer, only that the two seem related. Like most studies on diet and health, this one was based strictly on observing people's habits and resulting health. So it can't prove cause and effect.
But with so many people, more than a decade of follow-up and enough deaths to compare, "this is probably the best evidence we have" and are likely to get, said Dr. Frank Hu of the Harvard School of Public Health. He had no role in this study but helped lead a previous one that also found coffee beneficial.
The new one began in 1995 and involved AARP members ages 50 to 71 in California, Florida, Louisiana, New Jersey, North Carolina, Pennsylvania and Atlanta and Detroit. People who already had heart disease, a stroke or cancer weren't included. Neither were folks at diet extremes - too many or too few calories per day.
The rest gave information on coffee drinking once, at the start of the study. "People are fairly consistent in their coffee drinking over their lifetime," so the single measure shouldn't be a big limitation, Freedman said.
Of the 402,260 participants, about 42,000 drank no coffee. About 15,000 drank six cups or more a day. Most people had two or three.
By 2008, about 52,000 of them had died. Compared to those who drank no coffee, men who had two or three cups a day were 10 percent less likely to die at any age. For women, it was 13 percent.
Even a single cup a day seemed to lower risk a little: 6 percent in men and 5 percent in women. The strongest effect was in women who had four or five cups a day - a 16 percent lower risk of death.
None of these are big numbers, though, and Freedman can't say how much extra life coffee might buy.
"I really can't calculate that," especially because smoking is a key factor that affects longevity at every age, he said.
Coffee drinkers were less likely to die from heart or respiratory disease, stroke, diabetes, injuries, accidents or infections. No effect was seen on cancer death risk, though.
Other research ties coffee drinking to lower levels of markers for inflammation and insulin resistance. Researchers also considered that people in poor health might refrain from drinking coffee and whether their abstention could bias the results. But the study excluded people with cancer and heart disease - the most common health problems - to minimize this chance. Also, the strongest benefits of coffee drinking were seen in people who were healthiest when the study began.
About two-thirds of study participants drank regular coffee, and the rest, decaf. The type of coffee made no difference in the results.
Hu had this advice for coffee lovers:
- Watch the sugar and cream. Extra calories and fat could negate any benefits from coffee.
- Drink filtered coffee rather than boiled - filtering removes compounds that raise LDL, the bad cholesterol.
Researchers did not look at tea, soda or other beverages but plan to in future analyses.
Lou and Mariann Maris have already compared them. Sipping a local brew at a lakefront coffee shop, the suburban Milwaukee couple told of how they missed coffee after briefly giving it up in the 1970s as part of a health kick that included transcendental meditation and eating vegetarian.
Mariann Maris switched to tea after being treated for breast cancer in 2008, but again missed the taste of coffee. It's one of life's great pleasures, especially because her husband makes it, she said.
"Nothing is as satisfying to me as a cup of coffee in the morning," she said.
More information: New England Journal: Full Text (subscription or payment may be required) |
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| CarlosTheDJ Dazed and confused for so long its not true
Great Old One Joined: 01 Feb 2007 Total posts: 1928 Location: Sussex Age: 37 Gender: Male |
| Posted: 20-05-2012 12:28 Post subject: |
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Win. |
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| ramonmercado Psycho Punk
Joined: 19 Aug 2003 Total posts: 17938 Location: Dublin Gender: Male |
| Posted: 20-05-2012 12:41 Post subject: |
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| CarlosTheDJ wrote: |
Win. |
Yeah, just had 2 strong mugs. |
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| CarlosTheDJ Dazed and confused for so long its not true
Great Old One Joined: 01 Feb 2007 Total posts: 1928 Location: Sussex Age: 37 Gender: Male |
| Posted: 20-05-2012 13:48 Post subject: |
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| ramonmercado wrote: | | CarlosTheDJ wrote: |
Win. |
Yeah, just had 2 strong mugs. |
I reckon I might have a little go on some more right now. |
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