Batasi Es Teh, Hindari Batu Ginjal

Minuman teh dicampur dengan es sebagai pelepas dahaga di siang hari yang terik tentunya sangat menyenangkan. Namun, bagi Anda yang cenderung mengalami pembentukan batu ginjal sebaiknya berhati-hati. Penelitian terbaru menyarankan, sebaiknya beralih dari es teh ke air putih campur lemon atau jus lemon.

Menurut para ahli, batu yang terbentuk dari kristal di dalam ginjal atau saluran air seni dari ginjal ke kandung kemih mempengaruhi sekitar 10% populasi Amerika Serikat. Pria tercatat memiliki risiko empat kali lebih besar dibandingkan wanita. Risiko pembentukan batu ginjal tesebut biasanya akan meningkat setelah usia 40 tahun.

Kandungan zat oxalate sebagai salah satu kunci pembentukan batu ginjal, terdapat didalam es teh dalam tingkat konsentrasi tinggi.

"Untuk banyak orang, es teh adalah salah satu minuman yang paling buruk. Terutama bagi orang yang memiliki risiko pembentukan batu ginjal, minuman itu sangat berisiko," ujar Instruktur department of urology di Loyola University Chicago Stritch School of Medicine, John Milner.

Kegagalan untuk menjaga kecukupan cairan dalam tubuh adalah penyebab utama pembentukan gagal ginjal. Tingginya suhu udara dan tingkat kelembaban, sering menyebabkan keringat berlebih dan dehidrasi, didukung oleh tingginya konsumsi es teh, dapat meningkatkan risiko gagal ginjal saat ini.

Tea Association dari Amerika Serikat melaporkan, warganya mengonsumsi sekitar 1,91 miliar galon es teh per tahun. Hal tersebut dilatari dengan keyakinan bahwa minuman tersebut lebih sehat dibandingkan minuman lain seperti soda dan bir.

Milner mengatakan, minum air putih adalah cara terbaik untuk menjaga cairan dalam tubuh. Jika seseorang cenderung terkena batu ginjal, pilihan terbaik adalah minum air putih dengan lemon atau jus lemon.

"Lemon memiliki kandungan sitrat yang tinggi, sehingga dapat mencegah pembentukan batu ginjal. Jus lemon yang tidak dicampur dengan bahan-bahan perasa lainnya, dapat membantu pembentukan batu ginjal terutama bagi orang-orang yang berisiko tinggi," jelas Milner.

Makanan lainnya yang memiliki tingkat oxalate tinggi yang perlu dihindari oleh orang yang memiliki kecenderungan batu ginjal antara lain, bayam, coklat dan kacang.

Selain itu, perlu juga mengurngi konsumsi garam, dan minum air putih yang cukup setiap hari. Serta, makanan dengan kandungan kalsium tinggi yang dapat menetralkan penyerapan tubuh terhadap oxalate. (healtdaynews.com/rin)-http://republika.co.id/launcher/view/mid/19/news_id/1944

NB: HERBAL UTK ATASI BATU GINJAL : TEMPUYUNG DAN MENIRAN , INFO LEBIH LANJUT KE 081310343598 ATAU sehatherbal@gmail.com

The Inuit: Lessons from the Arctic

The Inuit (also called Eskimo) are a group of hunter-gatherer cultures who inhabit the arctic regions of Alaska, Canada and Greenland. They are a true testament to the toughness, adaptability and ingenuity of the human species. Their unique lifestyle has a lot of information to offer us about the boundaries of the human ecological niche. Weston Price was fascinated by their excellent teeth, good nature and overall robust health. Here's an excerpt from Nutrition and Physical Degeneration:

"In his primitive state he has provided an example of physical excellence and dental perfection such as has seldom been excelled by any race in the past or present...we are also deeply concerned to know the formula of his nutrition in order that we may learn from it the secrets that will not only aid in the unfortunate modern or so-called civilized races, but will also, if possible, provide means for assisting in their preservation."

The Inuit are cold-hardy hunters whose traditional diet consists of a variety of sea mammals, fish, land mammals and birds. They invented some very sophisticated tools, including the kayak, whose basic design has remained essentially unchanged to this day. Most groups ate virtually no plant food. Their calories came primarily from fat, up to 75%, with almost no calories coming from carbohydrate. Children were breast-fed for about three years, and had solid food in their diet almost from birth. As with most hunter-gatherer groups, they were free from chronic disease while living a traditional lifestyle, even in old age. Here's a quote from Observations on the Western Eskimo and the Country they Inhabit; from Notes taken During two Years [1852-54] at Point Barrow, by Dr. John Simpson:

These people [the Inuit] are robust, muscular and active, inclining rather to spareness [leanness] than corpulence [overweight], presenting a markedly healthy appearance. The expression of the countenance is one of habitual good humor. The physical constitution of both sexes is strong. Extreme longevity is probably not unknown among them; but as they take no heed to number the years as they pass they can form no guess of their own ages.

One of the common counterpoints I hear to the idea that high-fat hunter-gatherer diets are healthy, is that exercise protects them from the ravages of fat. The Inuit can help us get to the bottom of this debate. Here's a quote from Cancer, Disease of Civilization (1960, Vilhjalmur Stefansson):

"They are large eaters, some of them, especially the women, eating all the time..." ...during the winter the Barrow women stirred around very little, did little heavy work, and yet "inclined more to be sparse than corpulent" [quotes are the anthropologist Dr. John Murdoch, reproduced by Stefansson].

Another argument I sometimes hear is that the Inuit are genetically adapted to their high-fat diet, and the same food would kill a European. This appears not to be the case. The anthropologist and arctic explorer Vilhjalmur Stefansson spent several years living with the Inuit in the early 20th century. He and his fellow Europeans and Americans thrived on the Inuit diet. American doctors were so incredulous that they defied him and a fellow explorer to live on a diet of fatty meat only for one year, under the supervision of the American Medical Association. To the doctors' dismay, they remained healthy, showing no signs of scurvy or any other deficiency (JAMA 1929;93:20–2).

Yet another amazing thing about the Inuit was their social structure. Here's Dr. John Murdoch again (quoted from Cancer, Disease of Civilization):

The women appear to stand on a footing of perfect equality with the men, both in the family and the community. The wife is the constant and trusted companion of the man in everything except the hunt, and her opinion is sought in every bargain or other important undertaking... The affection of parents for their children is extreme, and the children seem to be thoroughly worthy of it. They show hardly a trace of fretfulness or petulance so common among civilized children, and though indulged to an extreme extent are remarkably obedient. Corporal punishment appears to be absolutely unknown, and children are rarely chided or punished in any way.

Unfortunately, those days are long gone. Since adopting a modern processed-food diet, the health and social structure of the Inuit has deteriorated dramatically. This had already happened to most groups by Weston Price's time, and is virtually complete today. Here's Price:

In the various groups in the lower Kuskokwim seventy-two individuals who were living exclusively on native foods had in their 2,138 teeth only two teeth or 0.09 per cent that had ever been attacked by tooth decay. In this district eighty-one individuals were studied who had been living in part or in considerable part on modern foods, and of their 2, 254 teeth 394 or 13 per cent had been attacked by dental caries. This represents an increase in dental caries of 144 fold.... When these adult Eskimos exchange their foods for our modern foods..., they often have very extensive tooth decay and suffer severely.... Their plight often becomes tragic since there are no dentists in these districts.

Modern Inuit also suffer from very high rates of diabetes and overweight. This has been linked to changes in diet, particularly the use of white flour, sugar and processed oils.

Overall, the unique lifestyle and diet of the Inuit have a lot to teach us. First, that some humans are capable of being healthy eating mostly animal foods. Second, that some humans are able to thrive on a high-fat diet. Third, that humans are capable of living well in extremely harsh and diverse environments. Fourth, that the shift from natural foods to processed foods, rather than changes in macronutrient composition, is the true cause of the diseases of civilization.

HERBAL UNTUK MENINGKATKAN IMUNITAS TUBUH

Menurut Dr Suprapto Ma'at dari Fakultas Kedokteran Universitas Airlangga fungsi sistem imun adalah pertahanan. Intinya menangkal bahan berbahaya agar tubuh tidak sakit. Jika sel-sel imun diganggu, orang rentan sakit. Ia sebagai penjaga keseimbangan komponen tubuh dengan membersihkan sel-sel yang mati. Fungsi lain, sistem imun meronda ke seluruh bagian tubuh. Jika ditemukan sel tubuh yang mutasi-memicu kanker-sistem imun akan membinasakannya 'Sistem imun tubuh melindungi tubuh dari bahaya radikal bebas dalam tubuh,' kata Lukas Tersono Adi, herbalis di Tangerang.

Sistem imun itu terbentuk dari antioksidan yang secara alami sudah terdapat dalam tubuh. Namun, jumlah sistem imun terkikis seiring gempuran bahan kimia dan penyakit. Makanya, untuk memperkuat sistem kekebalan tubuh butuh konsumsi bahan-bahan alami yang mengandung zat gizi lengkap. Dengan begitu keseimbangan hormon pengatur fungsi tubuh tetap terjaga, walau virus, cendawan, dan bakteri menggempur. 'Hidup sehat alami dengan cara memanfaatkan tanaman di sekitar kita,' imbuh Lukas.

Biji anggur yang selama ini kita buang ketika menikmati buah Vitis vinifera, justru kaya antioksidan. Ia berkekuatan tinggi sehingga dapat menembus sel darah dan otak sekaligus meningkatkan kadar oksigen dalam darah dan otak. 'Antioksidan tinggi juga terdapat pada herbal,' kata alumnus Universitas Diponegoro itu. Sekadar menyebut beberapa contoh adalah kumis kucing, meniran, pegagan, sambiloto, temulawak, kunir putih, daun sendok, dan jombang. Herbal itu teruji klinis dan mempunyai aktivitas antioksidan tinggi untuk membentuk sistem imun.

Kerja sama

Senyawa aktif yang terkandung dalam herbal itu memang beragam. Meniran Phyllanthus niruri ampuh menjaga organ tubuh dari penyakit itu. Ia kaya senyawa aktif seperti alkaloid, astragalin, asam karboksilat, brevifolin, dan korilagin. Senyawa-senyawa aktif itu saling bersinergi membentengi tubuh dari penyakit.
Sedangkan sambiloto Andrographis paniculata membantu imunitas tubuh melalui peningkatan daya fagositosis leukosit. Itu diperoleh berkat kerja sama 4 jenis senyawa lakton utama, yaitu deoksiandrografolida, andrografolida, neoandrografolida, dan didehidroandrografolida. Khasiat bakal terasa setelah rutin meminum rebusan 5 gram daun kering sambiloto dalam 2 gelas air. 'Jika menggunakan daun segar, dosisnya 30 lembar daun dan direbus dalam 2 gelas air,' kata Lukas.

Herba yang mujarab menjaga sistem kekebalan tubuh: temulawak Curcuma xanthorriza. Riset Prof Dr Yahya Kisyanto dan Dr Nyoman Kertia, SpPD-KR membuktikan temulawak menurunkan risiko serangan kanker payudara. Xanthorrhizol, senyawa aktif dalam rimpang kerabat kunyit itu memang terbukti antikanker. Selain itu, 'Temulawak juga didukung oleh 100 komponen senyawa aktif yang mencegah penyakit masuk ke tubuh,' kata Prof Nyoman.

Kurkuminoid salah satu di antaranya. Senyawa aktif itu berkhasiat sebagai antioksidan, antiinflamasi, antibakteri, antihepatotoksik, antikolesterol, antikanker, dan sekaligus antiplatelet agregasi. Dosis yang dianjurkan adalah 2 gram temulawak. Mau yang lain? Masih ada pegagan Centella asiatica. Jika rutin mengkonsumsi rebusan pegagan 3 kali sehari- rebus 3 gram dalam 2 gelas air- berbagai jenis kanker menjauh.

Sebab kandungan asam asetat, betakaroten, betakariofilen, betaelemena, betafarsenen, betasisterol, dan brahminosida dalam pegagan membentengi tubuh dari gempuran penyakit. Yasir Hassan Siddique periset Aligar Muslim University, membuktikan pemberian 50 mg/ kg bobot tubuh/hari ekstrak pegagan selama 14 hari, meningkatkan enzim antioksidan seperti superoksida dismutase (SOD), katalase, glutathione peroxidase (GSHPx), dan antioksidan glutathione (GSH) yang efektif menekan laju pertumbuhan tumor maupun kanker.

Temulawak, meniran, sambiloto, dan pegagan ada di sekitar kita dan mudah didapat. Dengan rutin mengkonsumsi herba itu, berarti memperkokoh pertahanan tubuh. Itulah salah satu cara paling bijak mencegah serangan penyakit maut yang terus mengintai. (Sardi Duryatmo & Vina Fitriani) http://www.trubus-online.co.id/mod.php?mod=publisher&op=printarticle&artid=1136

SehatHerbal.Com menyediakan ektrak temulawak, meniran, sambiloto dan pegagan yang sudah bentuk kaspul mudah dikonsumsi, herga terjangkau. Pemesanan : 081310343598 atau 021-91752768 . email : sehatherbal@gmail.com

Book Review: "The Human Diet: Its Origins and Evolution"

I recently read this book after discovering it on another health site. It's a compilation of chapters written by several researchers in the fields of comparative biology, paleontology, archaeology and zoology. It's sometimes used as a textbook.

I've learned some interesting things, but overall it was pretty disappointing. The format is disjointed, with no logical flow between chapters. I also would not call it comprehensive, which is one of the things I look for in a textbook. Here are some of the interesting points:

• Humans in industrial societies are the only mammals to commonly develop hypertension, and are the only free-living primates to become overweight.
  
• The adoption of grains as a primary source of calories correlated with a major decrease in stature, decrease in oral health, decrease in bone density, and other problems. This is true for wheat, rice, corn and other grains.
• Cranial capacity has also declined 11% since the late paleolithic, correlating with a decrease in the consumption of animal foods and an increase in grains.
• According to carbon isotope ratios of teeth, corn did not play a major role in the diet of native Americans until 800 AD. Over 15% of the teeth of post-corn South American cultures showed tooth decay, compared with less than 5% for pre-corn cultures (many of which were already agricultural, just not eating corn).
  
• Childhood mortality seems to be similar among hunter-gatherers and non-industrial agriculturists and pastoralists.
  
• Women may have played a key role in food procurement through foraging. This is illustrated by a group of modern hunter-gatherers called the Hadza. While men most often hunt, which supplies important nutrients intermittently, women provide a steady stream of calories by foraging for tubers.
• We have probably been eating starchy tubers for between 1.5 and 2 million years, which precedes our species. Around that time, digging tools, (controversial) evidence of controlled fire and changes in digestive anatomy all point to use of tubers and cooked food in general. Tubers make sense because they are a source of calories that is much more easily exploited than wild grains in most places.
• Our trajectory as a species has been to consume a diet with more calories per unit fiber. As compared to chimps, who eat leaves and fruit all day and thus eat a lot of fiber to get enough calories, our species and its recent ancestors ate a diet much lower in fiber.
  
• Homo sapiens has always eaten meat.
  

The downside is that some chapters have a distinct low-fat slant. One chapter attempted to determine the optimal diet for humans by comparing ours to the diets of wild chimps and other primates. Of course, we eat more fat than a chimp, but I don't think that gets us anywhere. Especially since one of our closest relatives, the neanderthal, was practically a carnivore.
They consider the diet composition of modern hunter-gatherers that eat low-fat diets, but don't include data on others with high-fat diets like the Inuit.

There's some good information in the book, if you're willing to dig through a lot of esoteric data on the isotope ratios of extinct hominids and that sort of thing.

Sunscreen and Melanoma

Melanoma is the most deadly type of skin cancer, accounting for most skin cancer deaths in the US. As Ross pointed out in the comments section of the last post, there is an association between severe sunburn at a young age and later development of melanoma. Darker-skinned people are also more resistant to melanoma. The association isn't complete, however, since melanoma sometimes occurs on the soles of the feet and even in the intestine. This may be due to the fact that there are several types of melanoma, potentially with different causes.

Another thing that associates with melanoma is the use of sunscreen above a latitude of 40 degrees from the equator. In the Northern hemisphere, 40 degrees draws a line between New York city and Beijing. A recent meta-analysis found consistently that sunscreen users above 40 degrees are at a higher risk of melanoma than people who don't use sunscreen, even when differences in skin color are taken into account. Wearing sunscreen decreased melanoma risk in studies closer to the equator. It sounds confusing, but it makes sense once you know a little bit more about UV rays, sunscreen and the biology of melanoma.

The UV light that reaches the Earth's surface is composed of UVA (longer) and UVB (shorter) wavelengths. UVB causes sunburn, while they both cause tanning. Sunscreen blocks UVB, preventing burns, but most brands only weakly block UVA. Sunscreen allows a person to spend more time in the sun than they would otherwise, and attenuates tanning. Tanning is a protective response (among several) by the skin that protects it against both UVA and UVB. Burning is a protective response that tells you to get out of the sun. The result of diminishing both is that sunblock tends to increase a person's exposure to UVA rays.

It turns out that UVA rays are more closely associated with melanoma than UVB rays, and typical sunscreen fails to prevent melanoma in laboratory animals. It's also worth mentioning that sunscreen does prevent more common (and less lethal) types of skin cancer.

Modern tanning beds produce a lot of UVA and not much UVB, in an attempt to deliver the maximum tan without causing a burn. Putting on sunscreen essentially does the same thing: gives you a large dose of UVA without much UVB.

The authors of the meta-analysis suggest an explanation for the fact that the association changes at 40 degrees of latitude: populations further from the equator tend to have lighter skin. Melanin blocks UVA very effectively, and the pre-tan melanin of someone with olive skin is enough to block most of the UVA that sunscreen lets through. The fair-skinned among us don't have that luxury, so our melanocytes get bombarded by UVA, leading to melanoma. This may explain the incredible rise in melanoma incidence in the US in the last 35 years, as people have also increased the use of sunscreen. It may also have to do with tanning beds, since melanoma incidence has risen particularly in women.

In my opinion, the best way to treat your skin is to tan gradually, without burning. Use clothing and a wide-brimmed hat if you think you'll be in the sun past your burn threshold. If you want to use sunscreen, make sure it blocks UVA effectively. Don't rely on the manufacturer's word; look at the ingredients list. It should contain at least one of the following: titanium dioxide, zinc oxide, avobenzone (Parsol 1789), Mexoryl SX (Tinosorb). It's best if it's also paraben-free.

Fortunately, as an external cancer, melanoma is easy to diagnose. If caught early, it can be removed without any trouble. If caught a bit later, surgeons may have to remove lymph nodes, which makes your face look like John McCain's. Later than that and you're probably a goner. If you have any questions about a growth, especially one with irregular borders that's getting larger, ask your doctor about it immediately!