Experts said exercising for between 30 and 60 minutes a day is ideal and beyond that would lead to ‘diminishing returns’.
A review of research on endurance exercise conducted by a team at the respected Mayo Clinic in Rochester, found such exercise as marathons, iron man distance triathlons, and very long distance bicycle races may cause structural changes to the heart and large arteries.
It was also revealed last week that surgeons are seeing an increase in the number of middle-aged fitness fans who are wearing out their knee joints by playing tennis and running into their 40s and 50s.
Published in the journal Mayo Clinic Proceedings it was found that some athletes suffer temporary changes in their heart function which return to normal in the week after their race; however for others, permanent scarring occurs.
“Exercise is one of the most important things you need to do on a daily basis.”
“But what this paper points out is that a lot of people do not understand that the lion’s share of health benefits accrue at a relatively modest level. Extreme exercise is not really conducive to great cardiovascular health. Beyond 30-60 minutes per day, you reach a point of diminishing returns.”
He added: “Physical exercise, though not a drug, possesses many traits of a powerful pharmacologic agent.
“A routine of daily physical activity can be highly effective for prevention and treatment of many diseases, including coronary heart disease, hypertension, heart failure, and obesity.
“However, as with any pharmacologic agent, a safe upper dose limit potentially exists,
beyond which the adverse effects of physical exercise, such as musculoskeletal trauma and cardiovascular stress, may outweigh its benefits.”
As well as scarring of the heart muscle, elite athletes can develop changes in their heart rhythm which can predispose them to sudden cardiac arrest and death if not treated quickly.
Endurance sports have been linked to a five-fold increased risk of atrial fibrillation, a heart rhythm disturbance which requires careful treatment and can be fatal.
More research is needed to establish the level at which exercise becomes harmful to the heart so exercise programmes can be devised to maximise the health benefits while protecting the heart, Dr O’Keefe said.
Attribution: Rebecca Smith
by: Tad Cronn
Just like a horror movie series, evil-minded Soviet-era treaties just keep coming back to life, aided by their acolytes in the United States Senate.
This treaty was originally rejected by President Reagan, but the LOST agenda has been lurking around the corridors of the United Nations ever since.
The treaty, which was endorsed by the former Soviet Union, would reduce our military power, rob us of rights over our own coastal resources, subject U.S. actions in international waters to the authority of foreign countries and submit our country to an international taxing agency that would “redistribute” our wealth to other nations, including some of our enemies.
Naturally, the liberals like it. And by liberals I mean not just Democrats but some of the RINOs hiding in the GOP camp, such as the five living Republican secretaries of state, from Kissinger to Rice.
The best reasons conjured for approving LOST include joining the international community in regulating the seas, “having a seat at the table” to negotiate rights over resources and having legal recourse should other nations violate our rights. Most incredibly, promoters of this treaty seem to think we’ll believe it increases our national security.
First, joining the international community to regulate the seas: We can already do that without the United Nations being given authority over us. It’s called diplomacy and negotiation.
Having a seat at the table: Unless you’re talking about an invitation to a gourmet feast or at least Thanksgiving dinner, a seat at the table isn’t worth much. Easy marks have a seat at the table, then they get taken for everything they’re worth and dumped in a back alley for their trouble.
Legal recourse against other nations that violate our rights: We have that already, again without the U.N. It’s called the United States military –and it’s a lot more effective than a pronouncement from some international courtroom.
As for increasing our national security, only a liberal could think that joining a treaty that requires us to give away secrets and our best technology to foreign nations that may use it against us is a way to secure the country.
The biggest stupidity of this treaty, however, is its granting of taxing authority to a Jamaica-based International Seabed Authority, especially at a time when the U.S. economy is suffering under its third year of recession. To raise taxes now would drive a stake through American businesses and the middle class.
The LOST convention represents a complete violation of the trust voters put in their representatives. Naturally, President Obama is already on board. Conservative voters need to tell their Senators to vote against it and keep LOST from being ratified.
I apologize for not posting this yesterday.
Ronald Reagan on the 40th Anniversary of the D-Day invasion
Meanwhile, Obama was in California doing fundraisers.
Okay, Darrell Issa is rapidly becoming one of my heros! Be patient. It’s get’s real good at the end.
These incredible pictures capture the stunning moment waves roll on to a tropical beach.
The breath-taking images show the split-second in which each one breaks and crashes on to the sand, and are the work of two photographers who wish to remind people just how beautiful Mother Nature can be.
Photographers Nick Selway, 28, and CJ Kale, 35, position themselves in the clear Hawaiian surf and wait for the waves to roll over them.
Their only equipment are standard cameras – but a waterproof case means they do not need to sacrifice their cameras for their art.
Attribution: Mail Online
Two old men had been best friends for years, and they both live to their early 90’s, when one of them suddenly falls deathly ill.
His friend comes to visit him on his deathbed, and they’re reminiscing about their long friendship, when the dying man’s friend asks, “Listen, when you die, do me a favor. I want to know if there’s baseball in heaven.”
The dying man said, “We’ve been friends for years, this I’ll do for you.” And then he dies.
A couple days later, his surviving friend is sleeping when he hears his friend’s voice. The voice says, “I’ve got some good news and some bad news. The good news is that there’s baseball in heaven.”
“What’s the bad news?”
“You’re pitching on Wednesday.”
from: Mytheos Holt of The Blaze:
Back in 1992, in his speech to the Republican National Convention, Pat Buchanan railed against the “environmental extremists who put birds and rats and insects ahead of families, workers, and jobs.”
The Obama administration’s Environmental Protection Agency (EPA) has, in fact, been doing its best to validate this description, either through policy or highly revealing slips of the tongue. The most recent of the slips comes from EPA Region 1 Administrator Curt Spalding, who was captured in a video released by the office of Senator Jim Inhofe (R-OK) telling an audience at Yale University the following:
“But know right now, we are, we are struggling. We are struggling because we are trying to do our jobs. Lisa Jackson has put forth a very powerful message to the country. Just two days ago, the decision on greenhouse gas performance standard and saying basically gas plants are the performance standard which means if you want to build a coal plant you got a big problem. That was a huge decision. You can’t imagine how tough that was. Because you got to remember if you go to West Virginia, Pennsylvania, and all those places, you have coal communities who depend on coal. And to say that we just think those communities should just go away, we can’t do that. But she had to do what the law and policy suggested. And it’s painful. It’s painful every step of the way.”
Hear the comments from Spalding’s own mouth here:
To Spalding’s credit, he at least sounds regretful that the EPA (according to him) absolutely has to drive an entire industry into the ground for no apparent reason. Nevertheless, this video will do nothing to assuage the image of President Obama as an essentially anti-coal President who is using his EPA to try to strangle the industry – an image that has yielded political humiliation for the President in Appalachia, where coal is one of the leading sources of employment.
One almost feels sorry for President Obama’s sake that “birds and rats and insects” can’t vote…at least, not outside Chicago.
Californian company Motoart spends hours transforming wings, doors and engine cowls into stylish furniture.
Many of the parts require more than 100 hours of cutting, grinding, buffing and polishing before they are ready for purchase.
The company’s bomber seats even come with the original ejector pin and ‘remove before flight’ warning tag.
Dave Hall, joint owner of Motoart, based next to Los Angeles International Airport, said:
“The mile high beds are very popular with men – and they are almost always bachelors.”
“The bed frames are made from the tail fins of a DC-9 aircraft.”
“We only have 12 of the ejector seats left, so they are priced at $12,000 each.”
Motoart has produced items for A-list celebrities, royalty in the Middle East, and big business clients including Microsoft and Boeing.
Mr Hall 45, set up Motoart in 2001 with Donovan Fell, 64.
The business now employs 17 people and takes in around $40 million a year.
Mr Hall said “Donovan had his doubts at first, but we cleaned the propellors up and sold them for $10,000 a piece – so we knew we were on to a winner.”
“The scrap parts make up ancient aircraft history. The engineering that went into them is incredible and we only enhance that.”
“Why wouldn’t you want to own a piece of history that looks this good?”
Attribution: Daily Mail