ยกย่องแสงอาทิตย์ เป็นคุณแก่สุขภาพ

thairath130510_001นักวิทยาศาสตร์มหาวิทยาลัยเอดินเบอระ ประกาศให้โลกได้รู้ว่าแสงแดดนั้นมีคุณค่ามหาศาล นอกจากจะช่วยให้ความดันโลหิตลด ป้องกันหัวใจวายและลมอัมพาตแล้ว ยังเป็นยาอายุวัฒนะขนานเอกด้วย

พวกเขาได้แสดงให้เห็นว่าเมื่อแดดส่องถูกผิวหนัง มันจะปล่อยสารประกอบชนิดหนึ่งเข้าสู่เลือด ทำให้ความดันโลหิตลดต่ำลง การศึกษาทำให้รู้ว่าแสงแดดนั้นเป็นคุณแก่สุขภาพทั่วทั้งสรรพางค์กาย แค่มันทำให้ความดันโลหิตลดได้ ก็มีความสำคัญเป็นล้นพ้น เกินกว่าที่จะกลัวกันว่าจะทำให้มะเร็งขึ้นที่ผิวหนังด้วยซ้ำไป

ในอังกฤษมีผู้เสียชีวิตด้วยโรคหัวใจและลมอัมพาต เนื่องมาแต่ความดันโลหิตสูงมากกว่าด้วยโรคมะเร็งผิวหนังถึง 80 เท่า

นอกจากที่มันสร้างสารที่มีชื่อว่าไนตริก ออกไซด์ ซึ่งลดความดันโลหิตแล้ว แดดยังช่วยสร้างวิตามินดี ซึ่งจะทวีเพิ่มขึ้นตามที่ได้โดนถูกแดด “จวบจนทุกวันนี้เราก็ยังเชื่อกันว่าแสงอาทิตย์ได้ประทานสิ่งดีทั้งหมด เพื่อสุขภาพของเราทั้งหมดทั้งสิ้น”.

 

ที่มา :  ไทยรัฐ  10 พฤษภาคม 2556

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Edinburgh University researchers found skin exposed to UV rays released a compound that lowers blood pressure

Edinburgh University researchers found skin exposed to UV rays released a compound that lowers blood pressure

Sun’s blood pressure benefits ‘may outdo cancer risks’

7 May 2013

The health benefits of exposing skin to sunlight may far outweigh the risk of developing skin cancer, according to scientists.

Edinburgh University research suggests sunlight helps reduce blood pressure, cutting heart attack and stroke risks and even prolonging life.

UV rays were found to release a compound that lowers blood pressure.

Researchers said more studies would be carried out to determine if it is time to reconsider advice on skin exposure.

Heart disease and stroke linked to high blood pressure are estimated to lead to about 80 times more deaths than those from skin cancer in the UK

Dietary vitamin D supplements alone will not be able to compensate for lack of sunlight

Dr Richard WellerEdinburgh University

Production of the pressure-reducing compound, nitric oxide, is separate from the body’s manufacture of vitamin D, which rises after exposure to sunshine.

Researchers said that until now vitamin D production had been considered the sole benefit of the sun to human health.

During the research, dermatologists studied the blood pressure of 24 volunteers under UV and heat lamps.

In one session, the volunteers were exposed to both UV rays and the heat of the lamps.

In the other, the UV rays were blocked so that only the heat affected the skin.

The results showed that blood pressure dropped significantly for an hour after exposure to UV rays, but not after the heat-only sessions.

Scientists said that this suggested it was the sun’s UV rays that brought health benefits.

The volunteers’ vitamin D levels remained unaffected in both sessions.

‘Reconsider our advice’

Dr Richard Weller, a senior lecturer in dermatology at Edinburgh University, said: “We suspect that the benefits to heart health of sunlight will outweigh the risk of skin cancer.

“The work we have done provides a mechanism that might account for this, and also explains why dietary vitamin D supplements alone will not be able to compensate for lack of sunlight.

“We now plan to look at the relative risks of heart disease and skin cancer in people who have received different amounts of sun exposure.

“If this confirms that sunlight reduces the death rate from all causes, we will need to reconsider our advice on sun exposure.”

The study will be presented on Friday in Edinburgh at the world’s largest gathering of skin experts. The International Investigative Dermatology conference starts on Wednesday and runs until Saturday.

SOURCE : www.bbc.co.uk

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กินถั่วทุกวันพิชิตโรคเบาหวานได้ทำให้น้ำตาลกับไขมันในเลือดลด

ถ้าหมั่นกินพวกถั่วหรือถั่วแขกชนิดเม็ดแดงและเหลือง วันละ 1 ถ้วยทุกวัน จะช่วยให้ผู้ป่วยเบาหวานแบบที่ 2 คุมระดับน้ำตาลในเลือด และยังพลอยทำให้โอกาสที่จะเป็นโรคหัวใจและลมอัมพาตลดน้อยไปด้วย

นักวิจัยโรงพยาบาลเซนต์ ไมเคิล นครโตรอนโตของคานาดากล่าวแจ้งว่า เมื่อเทียบกับการกินข้าวกล้อง การกินถั่วแขกชนิดเม็ดแดงและเหลืองทุกวัน จะทำให้การวัดระดับน้ำตาลในเลือดที่สำคัญลดลงได้เล็กน้อย รวมทั้งความดันโลหิตและปริมาณไขมันในเลือดด้วย โดยวัดได้ว่า ผู้ที่กินเช่นนั้นมานาน 3 เดือน โอกาสที่จะเป็นโรคหัวใจและหลอดเลือด ที่เป็นมา 10 ปี จะลดน้อยลงจากร้อยละ 10.7 เหลืออยู่ร้อยละ 9.6

ดร.เดวิด เจนกินส์ชี้ว่า แม้ว่าปริมาณที่ลดแม้จะเล็กน้อย แต่ก็อย่าลืมว่า มันแสดงว่าเหนือกว่าการกินข้าวกล้อง.

ที่มา: ไทยรัฐ 29 ตุลาคม 2555

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Saucy solution: Eating beans staves off heart disease by improving glycaemic control

Beans, beans, good for your heart, the more you eat, the better for your blood sugar levels (if you have type 2 diabetes)

  • Chickpeas and lentils also reduce risk of heart disease
  • Blood pressure is lowered by snacking on legumes

By EMMA REYNOLDS

PUBLISHED: 15:00 GMT, 23 October 2012

We’ve heard beans are good for your heart before.

Now a study has confirmed that they could help to save your life – if you have type 2 diabetes.

Eating more pulses including beans, chickpeas and lentils can reduce the risk of heart disease by controlling blood sugar levels, researchers at the University of Toronto discovered.

A low-glycaemic index (GI) diet that contains beans was found to improve glycaemic control and reduce coronary heart disease (CHD) in diabetes patients.

Dr David Jenkins and colleagues tested the effects of eating more foods from the legume group on 121 people with type 2 diabetes.

They found the low-GI legume diet reduced coronary heart disease risk by -0.8 per cent, largely because of a reduction in blood pressure.

Dr David Jenkins, a doctor at St Michael’s Hospital in Toronto, said: ‘Legume consumption of approximately 190g per day (a cupful) seems to contribute usefully to a low-GI diet and reduce CHD risk through a reduction in blood pressure.’

Health food: Chickpeas and lentils, along with a low-GI diet reduce coronary heart disease risk by -0.8 per cent

Low-GI foods have long been associated with improvement in blood sugar control in patients with type 2 diabetes and have been recommended in many national diabetes guidelines.

Dr Jenkins added: ‘These findings linking legume consumption to both improved glycemic control and reduced CHD risk are particularly important because type 2 diabetes is increasing most rapidly in the urban environments of populations in which bean intake has traditionally been high.’

The results were published on the Online First section of the Archives of Internal Medicine website.

The news comes just a week after scientists discovered that sitting down all day can double the risk of diabetes, heart disease and death.

So those with desk jobs might do well to grabs some beans on toast for breakfast in the morning.

SOURCE: dailymail.co.uk

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Eating nuts every day could help control Type 2 diabetes and prevent its complications, according to new research from St. Michael’s Hospital and the University of Toronto. (Credit: © Dmitry Rukhlenko / Fotolia)

Eating Nuts Daily Could Help Control Type 2 Diabetes and Prevent Complications, Study Suggests

ScienceDaily (July 12, 2011) — Eating nuts every day could help control Type 2 diabetes and prevent its complications, according to new research from St. Michael’s Hospital and the University of Toronto.

In the research, published online by the journal Diabetes Care, a team of researchers led by Dr. David Jenkins (University of Toronto Department of Nutritional Sciences; St. Michael’s Hospital Risk Factor Modification Centre) reports that consuming two ounces of nuts daily as a replacement for carbohydrates proved effective at glycemic and serum lipid control for people with Type 2 diabetes.

“Mixed, unsalted, raw, or dry-roasted nuts have benefits for both blood glucose control and blood lipids and may be used as part of a strategy to improve diabetes control without weight gain,” said Dr. Jenkins, who also has appointments with St. Michael’s Division of Endocrinology and Metabolism and the U of T’s Department of Medicine. He also serves as Canada Research Chair in Nutrition and Metabolism.

Jenkins and his colleagues provided three different diet supplements to subjects with Type 2 diabetes. One group was given muffins, one was provided with a mixture of nuts including raw almonds, pistachios, walnuts, pecans, hazelnuts, peanuts, cashews, and macadamias, and one group was given a mixture of muffins and nuts.

Subjects receiving the nut-only supplement reported the greatest improvement in blood glucose control using the glycosylated hemoglobin (HbA1c) test. The nut diet subjects also experienced a reduction in low-density lipoprotein cholesterol (known as LDL, or “bad cholesterol”). The subjects provided the muffin supplement or mixed muffin-and-nut supplement experienced no significant improvement in gylcemic control but those receiving the muffin-nut mixture also significantly lowered their serum LDL levels.

“Those receiving the full dose of nuts reduced their HbA1c [the long-term marker of glycemic control] by two-thirds of what the U.S. Food and Drug Administration recognizes as being clinically meaningful for therapeutic agents. Furthermore, neither in the current study nor in previous reports has nut consumption been associated with weight gain. If anything, nuts appear to be well suited as part of weight-reducing diets,” Dr. Jenkins said.

“The study indicates that nuts can provide a specific food option for people with Type 2 diabetes wishing to reduce their carbohydrate intake.”

Story Source:

The above story is reprinted from materials provided by St. Michael’s Hospital, via EurekAlert!, a service of AAAS.

Journal Reference:

  1. D. J. A. Jenkins, C. W. C. Kendall, M. S. Banach, K. Srichaikul, E. Vidgen, S. Mitchell, T. Parker, S. Nishi, B. Bashyam, R. de Souza, C. Ireland, R. G. Josse. Nuts as a Replacement for Carbohydrates in the Diabetic Diet.Diabetes Care, 2011; DOI: 10.2337/dc11-0338

SOURCE: sciencedaily.com