Friday, 5 February 2010

Bermain Bolasepak Lebih Baik Daripada Jogging Atau Angkat Berat

Berita baik bagi para pencinta bolasepak terutamanya budak-budak kampung yang sering bermain bola setiap petang. Kajian menunjukkan bahawa aktiviti main bola amat baik untuk kesihatan dan ia adalah lebih baik ataupun setara dengan jogging.

Sila baca laporan di bawah untuk laporan lebih lanjut.

Playing football better for your health 'than going for a run or lifting weights'

Playing football is better for your health than going for a run or lifting weights, researchers have said.

The intensity and range of movements involved in the game, including kicks, twists, turns and sprints, provide better overall exercise, according to a series of studies.

And five-a-side is more beneficial than a full-scale game, as it ensures that all players get a vigorous workout.
Prof Peter Krustrup, from Copenhagen University, who reviewed the research and was part of the team which carried out some of the studies, said that the sustained, stop-start nature of the game helped to build long-term fitness and burn fat.
It can help cut the risk of heart disease, by reducing blood pressure and cholesterol levels, and was also a good way to lose weight, according to the studies by 50 researchers in seven countries.
It is better than lifting weights and as good, if not better, than running, because of its benefits for the heart, Prof Krustrup added.
And he claimed that the results of the research suggest that football could be recommended as part of treatment for health problems such as high-blood pressure.
"Soccer affects numerous cardiovascular risk factors such as oxygen uptake, heart function, blood pressure, cholesterol and fat mass far more than strength training and just as much if not more than running,” he said.
“It is well-known that physical inactivity is a substantial risk factor in developing (heart) diseases in itself, but it is new that a pleasurable team sport like soccer is effective in treating high blood pressure.”
One of the studies asked 47 men with high blood pressure to play football or to run for an hour twice a week for three months.
Those playing the game saw their blood pressure fall by an average of twice as much as those in the running group.
Both groups lost similar amounts of weight but cholesterol levels fell among the footballers, an effect not seen in the running group.
Other studies found that football increased bone density twice as much as running.
The research is due to be published in the Scandinavian Journal of Medicine and Science in Sports.
The group now plan to test whether football is better for the health than other ball games, such as basketball or volleyball.

Hati-Hati Dalam Mencampur Adukkan Ubat Herba Dan Ubat Moden

Sila baca artikel di bawah mengenai kemungkinan bahaya yang bakal dihadapi jika kita mencampuradukkan produk herba dan ubatan moden. Mungkin cara yang lebih selamat adalah dengan mencuba satu persatu jenis ubatan daripada mencampurkannya.

Warning over herbal remedies interactions with heart drugs

Doctors have warned heart patients over the use of herbal remedies such as St John's Wort and ginkgo bioloba as they interact with medicines.

Millions of people are thought to use over the counter herbal remedies but doctors have warned that just because they are 'natural' does not mean they are safe.

They added that these substances can interfere with the way conventional medicines work, making them more potent or ineffective.
Researchers writing in the Journal of the American College of Cardiology said patients should inform their doctor if they are taking any herbal preparations.
Experts from the prestigious May Clinic in Arizona, America, said that St John's Wort, typically used for mild depression and sleep problems can reduce the effect of drugs to treat heart rhythm problems and high blood pressure. It may also increase blood cholesterol levels which may contribute to heart problems.
Ginkgo biloba, taken by some to boost their immune system or 'sharpen' their attention and increase energy levels can increase the risk of bleeding in patients taking blood thinners warfarin and aspirin.
Garlic can also have the same effect when taken in large doses.
Patients taking drugs such as warfarin are already wanred to avoid a list of foods and drinks, including grapefruit juice, as it interferes with the blood thinning action of the drug.
Dr Arshad Jahangir, Professor of Medicine and Consultant Cardiologist, at the Mayo Clinic, said: "Many people have a false sense of security about these herbal products because they are seen as 'natural'.
"But 'natural' doesn't always mean they are safe. Every compound we consume has some effect on the body, which is, in essence, why people are taking these products to begin with.
"We can see the effect of some of these herb-drug interactions—some of which can be life-threatening—on tests for blood clotting, liver enzymes and, with some medications, on electrocardiogram."
He said a major concern is that patients often do not tell their doctor they are taking herbal remedies as they do not think of them as medicines.
Dr Jahangir said: "These herbs have been used for centuries—well before today's cardiovascular medications—and while they may have beneficial effects these need to be studied scientifically to better define their usefulness and, more importantly, identify their potential for harm when taken with medications that have proven benefit for patients with cardiovascular diseases.
"Patients, physicians, pharmacists and other healthcare providers need to know about the potential harm these herbs can have."

Tidak Semua Orang Mendapat Manafaat Dari Bersenam?

Selama ini kita didedahkan dengan betapa bermanafaatnya berjogging atau bersenam robik dalam mencegah penyakit kencing manis atau penyakit jantung. Berjuta-juta orang seluruh dunia meluangkan masa mereka untuk mendapatkan faedah dalam aktiviti tersebut, sehingga banyak juga pemerintah dari berbagai negara tidak kemut dalam mengadakan budget untuk menyediakan kemudahan bersenam kepada rakyat mereka.

Tetapi baru-baru ini para saintis mendedahkan bahawa berjuta manusia sebenarnya hanya membuang masa dengan bersenam untuk kesihatan kerana kesan positif yang dapat memberikan faedah untuk kesihatan daripada bersenam hanya bergantung kepada jenis atau "genes" seseorang itu. Yang bermaksud bahawa kesannya amat bergantung secara individu.

Mereka mendapati bahawa sekitar 20% daripada keseluruhan mereka yang bersenam tidak mendapat apa-apa faedah yang memberangsangkan terhadap kesihatan jantung mereka atau terhadap kesan penyakit kencing manis.

Nampaknya manusia sentiasa mencari-cari formula untuk hidup sihat dan panjang umur, dan setiap penemuan yang kita jumpa sebenarnya hanya anggapan semata-mata yang tidak menggambarkan situasi sebenar. Semua ini hanya menggambarkan betapa lemahnya pengetahuan kita terhadap diri kita sendiri.

Jika kita mendabik dada merasa hebat, maka ternyata kita hanya mendedahkan kebodohan diri sendiri saja, melainkan kita mengakui kelemahan kita dan kehinaan kita terhadap Pencipta kita Tuhan Yang Maha Esa. Sesiapa yang berusaha dan mengkaji semata untuk mendapat keredaanNya maka itulah yang dia dapat, sesiapa mengkaji untuk selain daripada itu maka tidak ada sebarang faedahpun untuk dirinya, terutamanya di hari kemudian nanti.

Millions of people 'waste their time by jogging'

Millions of people who strive to keep fit by jogging, swimming or going to the gym are wasting their time, scientists said.

Researchers have discovered that the health benefits of aerobic exercise are determined by our genes - and can vary substantially between individuals.
Around 20 per cent of the population do not get any significant aerobic fitness benefit from regular exercise, according to an international study led by scientists at the University of London.
For these people, regular jogging and gym work will do little to ward off conditions like heart disease and diabetes which aerobic exercise is generally thought to resist.
Researchers say they would be better off abandoning their exercise regime and focusing on other ways of staying healthy - such as improving their diet or taking medication.
James Timmons of the Royal Veterinary College at the University of London, who led the study, said that the discovery would pave the way for more personalised treatments, with patients able to take DNA tests to find out the most effective way of keeping their own hearts healthy.
It could also be used to root out would-be recruits to the Armed Forces who will never be able to reach the required fitness standards.
Dr Timmons said the research broke new ground by using the human genome - the genetic map of the body which was decoded by scientists 10 years ago - to suggest improvements to healthcare.
"This would be one of the first examples of personalised, genomic-based medicine," he said.
As part of the research, published in the Journal of Applied Physiology, more than 500 participants in Europe and the US were asked to undergo various aerobic training programmes in line with government advice to do 30 minutes of exercise five times a week.
By the end of the 20, 12 and six week programmes the majority of people had shown a measurable improvement in how much oxygen their body consumes during exercise, a key indicator of aerobic fitness.
But 20 per cent saw their maximum oxygen increase by less than five per cent - a negligible improvement. Around 30 per cent showed no increase in insulin sensitivity, meaning that the exercise did not reduce their risk of diabetes.
A pioneering analysis of muscle tissue samples taken from the participants revealed a set of about 30 genes that predicted the increase in oxygen intake. Of these, 11 were shown to have a particular impact on how much a person could benefit from aerobic exercise.
Dr Timmons said: “We know that low maximal oxygen consumption is a strong risk factor for premature illness and death so the tendency is for public health experts to automatically prescribe aerobic exercise to increase oxygen capacity.
"Our hope is that before too long, they will be able to target that prescription just to those who may stand a greater chance of benefiting, and prescribe more effective preventive or therapeutic measures to the others.”
Research published by the British Heart Foundation this week found that one third of adults do their recommended 30 minutes of physical activity a day.
At their peak seven years ago 8.7 million Britons paid to attend gyms, although memberships have fallen since the start of the recession.
The research was conducted in association with the Human Genomics Laboratory in Louisiana and the Centre for Healthy Ageing at the University of Copenhagen.

Thursday, 4 February 2010

Organ Babi Menggantikan Organ Manusia ?

Para saintis di Australia sedang giat menjalankan ujikaji bagi membolehkan paru-paru babi digunakan dalam transplant manusia. Dalam kajian terbaru menunjukkan keputusan yang amat positif yang boleh membawa kepada kemugkinannya paru-paru babi dapat menggantikan paru-paru manusian yang telah rosak.

Banyak kajian bagi membolehkan organ terutamanya jantung, paru-paru dan buah pinggang babi digunakan oleh manusia sedang dijalankan di Australia kerana saiz organ babi yang hampir sama dengan manusia, sehinggakan kerajaan Australia sedang bersedia untuk menternak sekumpulan babi yang di ubah DNAnya bagi menyesuaikan organnya dijadikan sebagai sparepart manusia yang rosak.

Perkembangan teknologi perubatan sekarang ini amat laju sekali dan pelbagai kaedah perubatan telah diparaktiskan yang sebelum ini tidak pernah terlintas dek akal kita.

Walaupun hampir semua penemuan teknologi perubatan terkini adalah daripada para saintis barat dan bukan daripada umat atau negara Islam, kita perlu berbuat sesuatu untuk memastikan umat islam tidak ketinggalan mengikuti segala perkembangan, dan yang paling penting sekali apakah hukumnya bagi seseorang muslim yang mahu mengamalkan atau terlibat dalam memanafaatkan segala teknologi baru tersebut.

Umpamanya seorang muslim yang mahu menukarkan paru-parunya dengan paru-paru seekor babi...?

Ulama' mempunyai misi yang amat mencabar, bukan sekadar asyik mengulang baca kitab kuning di masjid-masjid sahaja.

Sila ikuti laporan perkembangan penggunaan paru-paru babi dalam human transplant di bawah:

Laporan 1

Pig lungs in human transplants moves step closer

The use of pig lungs in transplants into humans has moved a step closer with a medical breakthrough.

Scientists in Melbourne, Australia, used a ventilator and pump to keep the animal lungs alive and "breathing" while human blood flowed in them.
Experts estimated the work could lead to the first animal-human transplants within five years.
Dr Glenn Westall, who helped conduct the experiment, said: “The blood went into the lungs without oxygen and came out with oxygen, which is the exact function of the lungs.
"It showed that these lungs were working perfectly well and doing as we were expecting them to do.
“This is a significant advance compared to experiments that have been performed over the past 20 years."
The breakthrough came after scientists were able to remove a section of pig DNA, which had made the pig organs incompatible with human blood.
Previous attempts to combine unmodified pig lungs and human blood ended abruptly two years ago when blood clots began forming almost immediately, causing the organs to become so blocked no blood could pass through.
Human DNA is now added to the pigs as they are reared to reduce clotting and the number of lungs which are rejected.
The full results of the research are due to be announced in Vancouver in August.
The issue has prompted an ethical debate about the use of animals for human transplants.
Medical ethicist Professor Nicholas Tonti-Filippini said: “It is basically a human-pig, a hybrid, or whatever you want to call it.
“It is about whether the community is prepared to accept a part human, part animal."
Laporan 2

Organs transplants from pigs could be a reality in less than a decade, claims Lord Winston

Hearts and kidneys taken from genetically modified pigs could be transplanted into humans within a decade, a leading scientist has said.

Lord Winston, the fertility expert at Imperial College London, is developing a genetically modified strain of pig that he believes could solve the shortage of organs for transplant patients.
The pigs, which could eventually also donate other organs such as the liver, will be bred so that transplants will not be rejected by the human body.
Once created the "donor strain" should be able to reproduce normally thus producing an almost limitless and cheap supply of organs.
A shortage of appropriate donors means that approximately 500 people die every year in the UK while on waiting lists for transplant operations.
Lord Winston said: "We think we can produce transplantable organs within two or three years but then will need to carry out extensive tests.
"Within 10 years we think they could be available for hospitals."
Lord Winston said he understood that there was a "large amount of nervousness" over animal to human transplants but felt it could be overcome.
He said that the biggest worry that animal diseases could be passed onto humans was one that scientists had already countered by producing pigs in a completely virus free environment.
"One person every 15 minutes goes on the transplant waiting list and only about a fifth of people who could benefit from a transplant go on the list at all,|" he said.
"There is a massive shortage and people are literally waiting for a car accident to happen. These pigs offer some quite special possibilities."
Lord Winston and his team want to insert genes into immature sperm cells in male pigs, genes that would genetically programme their offspring so that their organs could be safely transplanted into humans.
But he said that Government and European Union bureaucracy was hindering the work and he was likely to carry some of the work in America.
There are 7,963 people on waiting lists and only enough donors to carry out around 3,000 transplants a year.

Tuesday, 2 February 2010

Fish oil supplements 'beat psychotic mental illness'

Taking a daily fish oil capsule can stave off mental illness in those at highest risk, trial findings suggest.
A three-month course of the supplement appeared to be as effective as drugs, cutting the rate of psychotic illness like schizophrenia by a quarter.
The researchers believe it is the omega-3 in fish oil - already hailed for promoting healthy hearts - that has beneficial effects in the brain.
A "natural" remedy would be welcomed, Archives of General Psychiatry says.
"The finding that treatment with a natural substance may prevent, or at least delay, the onset of psychotic disorder gives hope that there may be alternatives to antipsychotic drugs," the study authors said.
Antipsychotic drugs are potent and can have serious side effects, which puts some people off taking them.

Fish oil supplements, on the other hand, are generally well tolerated and easy to take, say the scientists.
The international team from Austria, Australia and Switzerland tested the treatment in 81 people deemed to be at particularly high risk of developing psychosis.
Natural choice
Their high risk was down to a strong family history of schizophrenia, or similar disorders, or them already showing mild symptoms of these conditions themselves.
For the test, half of the individuals took fish oil supplements (1.2 grams of omega-3 fatty acids) for 12 weeks, while the other half took only a dummy pill. Neither group knew which treatment they were receiving.
Dr Paul Amminger and his team followed the groups for a year to see how many, if any, went on to develop illness.
Two in the fish oil group developed a psychotic disorder compared to 11 in the placebo group.
Based on the results, the investigators estimate that one high-risk adult could be protected from developing psychosis for every four treated over a year.
They believe the omega-3 fatty acids found in the supplements may alter brain signalling in the brain with beneficial effects.
Alison Cobb, of the mental health charity Mind, said: "If young people can be treated successfully with fish oils, this is hugely preferable to treating them with antipsychotics, which come with a range of problems from weight gain to sexual dysfunction, whereas omega-3s are actually beneficial to their general state of health.
"These are promising results and more research is needed to show if omega-3s could be an alternative to antipsychotics in the long term."

Sunbathing 'boosts men's sex drive'

A spot of sunbathing boosts men's sex drive, reveals a new study.

Testosterone levels in men's blood rise accordingly with doses of vitamin D.
The vital nutrient is produced in the body after exposure to sunlight and can also be obtained from eating oily fish and meat.
Researchers at the Medical University of Graz in Austria found men with more vitamin D per millilitre of blood had much more of the main male sexual hormone circulating than those with less.
And the average amount of testosterone over the course of the year was subject to the same fluctuations as the vitamin D level.

Both decrease from October - at the beginning of the winter months - and reach their lowest level in March because of the weaker solar radiation during this period.
Ad Brand, spokesman of the Sunlight Research Forum in Veldhoven in the Netherlands, said: "Men who ensure their body is at least sufficiently supplied with vitamin D are doing good for their testosterone levels and their libido among other things."
The new findings back up previous research that found an hour of sunshine can boost a man's testosterone by 69 percent.
Testosterone is the most important male sexual hormone. In males it is mainly responsible for the development of the sex organs, the formation and maintenance of the typical male sexual characteristics, sperm production and the controlling of male desire.
Stimulated by UV radiation, 90 per cent of vitamin D in the body is produced by the skin. An average vitamin D level of 30 nanograms per millilitre of blood (30 ng/ml) represents the scientific value from which vitamin D has a sufficiently positive effect. Optimal values are between 40 and 60 ng/ml.
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