Read this over coffee

Go ahead: That cup of joe won't hurt you, the latest research says. It might even help you.
Coffee drinkers, rejoice! The heavenly brew, once deemed harmful to health, is turning out to be, if not quite a health food, at least a low-risk drink, and in many ways a beneficial one. It could protect against diabetes, liver cancer, cirrhosis and Parkinson's disease.
What happened? Lots of new research, and the recognition that older, negative studies often failed to tease apart the effects of coffee and those of smoking because so many coffee drinkers were also smokers.
"Coffee was seen as very unhealthy," said Rob van Dam, a coffee researcher and epidemiologist at the Harvard School of Public Health. "Now we have a more balanced view. We're not telling people to drink it for health. But it is a good beverage choice."
As you digest the news on coffee, keep in mind that coffee and caffeine are not the same thing. In fact, "they are vastly different," said coffee researcher Terry Graham, chairman of Human Health and Nutritional Sciences at the University of Guelph in Ontario, Canada. One can be good for you; the other, less so.
"Coffee is a complex beverage with hundreds, if not thousands, of bioactive ingredients," he said. "A cup of coffee is 2% caffeine, 98% other stuff."
Before we rhapsodize further, a few caveats:
Caffeine -- whether in coffee, tea, soft drinks or pills -- can make you jittery and anxious and, in some people, can trigger insomnia. Data are mixed on whether pregnant women who consume caffeine are more likely to miscarry. In general, 200 milligrams a day -- the amount in one normal-sized cup of coffee -- is believed safe for pregnant women, said Van Dam.
For people with hard-to-control hypertension, a sudden, big dose of caffeine may boost blood pressure because caffeine constricts blood vessels. But decaf is fine in that respect. And even caffeinated coffee doesn't increase blood pressure much once you drink it for a week or so, said Van Dam. In fact, the caffeine in coffee seems to have less of an effect on blood pressure than the caffeine in colas because there are so many other substances in coffee that have the opposite effect physiologically from caffeine.
One final caveat: The new research heralding coffee's health benefits is not perfect. Most of the studies are observational; that is, they followed people over time and correlated health outcomes with coffee drinking -- based on people's recollections of how much coffee they consumed. The studies don't prove that coffee was the cause of improved health outcomes. Still, the sheer volume of the research, and the fact that the conclusions line up so neatly, make it reasonably credible, researchers say.
Diabetes: Twenty studies worldwide show that coffee, both regular and decaf, lowers the risk for Type 2 diabetes, in some studies by as much as 50%. Researchers say that is probably because chlorogenic acid, one of the many ingredients in coffee, slows uptake of glucose (sugar) from the intestines. (Excess sugar in the blood is a hallmark of diabetes.) Chlorogenic acid may also stimulate GLP-1, a chemical that boosts insulin, the hormone that escorts sugar from the blood into cells. Yet another ingredient, trigonelline, a precursor to vitamin B3, may help slow glucose absorption.
Heart disease and stroke: Recent studies suggest that frequent coffee consumption does not increase the risk of either condition. In fact, coffee might -- repeat, might -- slightly reduce the risk of stroke. A study published in March in the journal Circulation looked at data on more than 83,000 women older than 24. It showed that those who drank two to three cups of coffee a day had a 19% lower risk of stroke than those who drank almost none. A Finnish study found similar results for men.
For cardiovascular diseases other than stroke, there doesn't appear to be a preventive benefit from drinking coffee, but there is also no clearly documented harm; the studies looked at the effect of drinking up to six cups of regular coffee a day.
Cancer: Coffee research has come up empty here -- with one big exception: liver cancer. Research consistently shows a drop in liver cancer risk with coffee consumption, and there is some, albeit weaker, evidence that it may lower colon cancer risk as well.
Cirrhosis: Coffee seems to protect the liver against cirrhosis, especially that caused by alcoholism. It's not clear, either for cancer or cirrhosis, whether it's coffee or caffeine that may be protective.
Parkinson's disease: With this progressive, neurological illness, it's the caffeine, not coffee, that carries the benefit. No one knows for sure why caffeine protects. Several studies show that coffee drinkers, men especially, appear to have half the risk of Parkinson's compared with nondrinkers. Women also get a benefit, but only those who do not use post-menopausal hormones, said Dr. Alberto Ascherio, a professor of epidemiology and nutrition at the Harvard School of Public Health. All it takes for a measurable reduction in Parkinson's risk, he said, is about 150 milligrams a day, the amount in an average cup of coffee.
Athletic performance: It's clear that caffeine, not coffee per se, delivers the big boost here, said Graham, the researcher from Ontario. In fact, caffeine was once deemed a controlled substance by the International Olympic Committee. Caffeine is a powerful "ergogenic agent," meaning it promotes the ability of muscles to work. Studies show that caffeine boosts performance in both very short and very long athletic events, said Graham. It used to be thought that caffeine worked by stimulating the release of sugar (glycogen) in muscles, but recent research suggests it helps muscles release calcium, allowing muscles to contract with more force. It takes only a medium cup of regular coffee for a 130-pound athlete to see a measurable improvement in performance, Graham added.
One last bit of coffee advice: Beware of unfiltered coffee -- the kind that is popular in Scandinavia and is made in French presses. Filtered coffee, which most Americans drink, is much better because the paper filters catch a substance called cafestol, which boosts "bad" cholesterol (LDL). Filtered coffee has no effect on either good or bad cholesterol.
If, despite all this good news, you still worry you're drinking too much coffee, then cut back or quit. But don't go cold turkey. Abrupt caffeine withdrawal can trigger headaches, noted Dr. Alan Leviton, a neurologist at Harvard Medical School who consults for the National Coffee Assn., an industry group. So, taper off instead.
On the other hand, if reading this makes you want an extra cup, go for it. And enjoy it -- guilt free.

Topless coffee shop burns down; official says it was arson

In the end, a coffee shop in Vassalboro, Maine, that gained national attention for its topless waiters and waitresses simply proved too hot -- the Grand View Topless Coffee Shop burned to the ground early Wednesday morning.
 A state fire official said it was arson.
The blaze consumed the risque, small-town business shortly after midnight, said Vassalboro Fire Chief Eric Rowe. He described the flames as "severe" and said the building was a "total loss."
"I really liked it here," waitress Krista Macentyre said after learning the cause of the fire. "We weren't hurting anyone. I don't know why someone would do something like this."
The shop's proprietor, Donald Crabtree, said he is determined to rebuild. "This is home" to a lot of people, he said.
For Crabtree the coffee shop literally was home. He and his two daughters, their two boyfriends, and his two infant grandchildren lived in quarters attached to the Grand View. The fire forced them to relocate to a motel.
Stephen McCausland, spokesman for the Maine Department of Public Safety, called it arson and said "evidence has been taken to the state police crime for lab analysis."
An ambulance crew returning to Belfast, Maine, noticed the fire around 1 a.m., waking Crabtree and six others, including two 4-month-old infants, according to McCausland.
Crabtree said he did not have insurance for the Grand View. If necessary, he said, he would be willing to reopen in a temporary mobile trailer on the site of the topless -- and now roofless -- coffee shop.
Crabtree said his 10 female and three male employees are "in shock."
While some Vassalboro residents expressed displeasure with the 18-and-over establishment, Crabtree said he had received no threats.
In a February interview with CNN shortly after Grand View opened, Crabtree said the coffee shop was doing brisk business in the small town of 4,500. "It's just been crowds mobbing in," he said at the time.
"This place was made to put smiles on people's faces," he said Wednesday.
Waitress Macentyre added, "This was a good innocent business."
"Every worker was just trying to take care of themselves and make a living -- just trying to live like everybody else," she said.

Coffee 'may reverse Alzheimer's'

Drinking five cups of coffee a day could reverse memory problems seen in Alzheimer's disease, US scientists say.
The Florida research, carried out on mice, also suggested caffeine hampered the production of the protein plaques which are the hallmark of the disease.
Previous research has also suggested a protective effect from caffeine.
But British experts said the Journal of Alzheimer's disease study did not mean that dementia patients should start using caffeine supplements.
 The results are particularly exciting in that a reversal of pre-existing memory impairment is more difficult to achieve
The 55 mice used in the University of South Florida study had been bred to develop symptoms of Alzheimer's disease.
First the researchers used behavioural tests to confirm the mice were exhibiting signs of memory impairment when they were aged 18 to 19 months, the equivalent to humans being about 70.
Then they gave half the mice caffeine in their drinking water. The rest were given plain water.
The mice were given the equivalent of five 8 oz (227 grams) cups of coffee a day - about 500 milligrams of caffeine.
The researchers say this is the same as is found in two cups of "specialty" coffees such as lattes or cappuccinos from coffee shops, 14 cups of tea, or 20 soft drinks.
When the mice were tested again after two months, those who were given the caffeine performed much better on tests measuring their memory and thinking skills and performed as well as mice of the same age without dementia.
Those drinking plain water continued to do poorly on the tests.
In addition, the brains of the mice given caffeine showed nearly a 50% reduction in levels of the beta amyloid protein, which forms destructive clumps in the brains of dementia patients.
Further tests suggested caffeine affects the production of both the enzymes needed to produce beta amyloid.
The researchers also suggest that caffeine suppresses inflammatory changes in the brain that lead to an overabundance of the protein.
Earlier research by the same team had shown younger mice, who had also been bred to develop Alzheimer's but who were given caffeine in their early adulthood, were protected against the onset of memory problems.
'Safe drug'
Dr Gary Arendash, who led the latest study, told the BBC: "The results are particularly exciting in that a reversal of pre-existing memory impairment is more difficult to achieve.
"They provide evidence that caffeine could be a viable 'treatment' for established Alzheimer's disease and not simply a protective strategy.
"That's important because caffeine is a safe drug for most people, it easily enters the brain, and it appears to directly affect the disease process."
The team now hope to begin human trials of caffeine to see if the mouse findings are replicated in people.
They do not know if a lower amount of caffeine would be as effective, but said most people could safely consume the 500 milligrams per day.
However they said people with high blood pressure, and pregnant women, should limit their daily caffeine intake.
Rebecca Wood, chief executive of the Alzheimer's Research Trust, said: "In this study on mice with symptoms of Alzheimer's, researchers found that caffeine boosted their memory. We need to do more research to find out whether this effect will be seen in people.
"It is too early to say whether drinking coffee or taking caffeine supplements will help people with Alzheimer's.
Neil Hunt, chief executive of the Alzheimer's Society, said previous research into caffeine had suggested it could delay Alzheimer's disease and even protect against vascular dementia.
"This research in mice suggests that coffee may actually reverse some element of memory impairment.
"However much more research is needed to determine whether drinking coffee has the same impact in people.
"It is too soon to say whether a cup of coffee is anything more than a pleasant pick me up."