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القهوه Coffee

posted 5 May 2011, 04:20 by Manal Raafat


Coffee is a drink prepared from roasted seeds, called coffee beans, of the coffee plant. Coffee beans are found in coffee cherries, which grow on trees in over 70 countries, cultivated primarily in Latin America, Southeast Asia, and Africa. 'Green Unroasted' coffee is one of the most traded agricultural commodities in the world.


Coffee can have a stimulating effect on humans due to its caffeine content. It is one of the most-consumed beverages in the world.



the original picture




Its Effect On Health.

Scientific studies have examined the relationship between coffee consumption and an array of medical conditions.  The differences between beneficial/harmful effects of coffee consumption depends on the differences in methods of preparation ,age ,and coffee consumption [time and frequency of intake].Moderate amounts of coffee are well tolerated by most elderly people. Excessive amounts of coffee, however, can, in many individuals, cause very unpleasant, life-threatening adverse effects.


Some   beneficial effects of coffee

Coffee consumption has been shown to have minimal or no impact, positive or negative, on cancer development .Some studies suggest coffee consumption reduces the risk of being affected by Alzheimer's disease, Parkinson's disease, heart disease, diabetes mellitus type 2, cirrhosis of the liver, and gout.

Coffee is no longer thought to be a risk factor for coronary heart disease. One study suggests that it may have a mixed effect on short-term memory.

Caffeine has been associated with its ability to act as an antidepressant.

The stimulant effect of coffee is due to its caffeine content. The caffeine content of a cup of coffee varies depending mainly on the brewing method, and also on the variety of bean.The smell of coffee also can restore appetite


 Some unpleasent effects of coffee

Coffee's negative health effects are often blamed on its caffeine content.

Coffee consumption can lead to iron deficiency anemia in mothers and infants [ Coffee interferes with the absorption of supplemental iron.].


    القهوة

القهوة مشروب يعد من بذور البن المحمصة، وينمو البن في أكثر من 70 بلدا فى العالم ويقال أن البن الأخضر هو ثاني أكثر السلع تداولا في العالم بعد 

النفط الخام 

تعد القهوة واحدة من المشروبات الأكثر شعبية في جميع أنحاء العالم لما لها من تأثير منبه لما تحتويه من ماده الكافيين المنشطه و المنبهه 

و يعتد أن الأثيوبيين كانوا هم أول من اكتشف وتعرف على الأثر المنشط لنبات حبوب القهوة

و قد قامت العديد من الدراسات بالبحث في العلاقة بين استهلاك القهوة وبعض الحالات الطبية، ولا يزال هناك جدال حول ما إذا كانت الآثار العامة 

للقهوة إيجابية أم سلبية 

فبالنسبه لمرض السرطان فقد تبين أن استهلاك القهوة ليس له أدنى أو أي تأثير ايجابي أو سلبي، في تطور المرض 

 وقد أظهرت دراسات متنوعة أخرى، انخفاض واضح لمخاطر مرض الزهايمر، مرض باركنسون - الشلل الرعاش - و  أمراض القلب، مرض 

السكري من نوع 2 و كذلك تليف الكبد و مرض النقرس

وهناك دراسة أظهرت أن شرب القهوة و الشاى باعتدال (3-5 أكواب يوميا)  يقلل من الاصابه بمرض الزهايمر

 يمكن أن يؤدي تناول القهوة إلى زياده الحموضه بالمعده و كذلك نقص الحديد وفقر الدم لدى الأمهات والأطفال الرضع بسبب منع امتصاص الحديد من 

الطعام 

 

HOW TO CHANGE THAT PICTURE ?




Open the picture in Photoshop

  • Select the white background  with the Quick Selection Tool .
  • Reverse the selection .From the Selection Menu select Inverse .
  • Refine edge of the selection [ from the Refine Edge button   in the option menu and do the same as the diagram ]
  • copy the cup picture [ Ctrl + C while it is selected ]
  • Open new document with double the hieght of the original picture and the same width with the color you like you can also apply gradient .
  • Copy the cup to the new document [Ctrl + v]
  • Add new layer and make oval selection and fill it with brown [ the coffee] adjust it with the Transform Tool .
  • Add new layer and with the brush tool draw curved twisted lines to resemble the smoke .
  • With the Smudge Tool press and drag to resemble the smoke .Choose the brush size suitable for the look of the smoke .
  •  Save your work. 
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