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In certain amount, the use of pesticides for fruit and vegetable crops can still be tolerated body. There are vegetables and fruits that are most prone to absorb pesticides but there are also thick-skinned fruits and vegetables are less exposed to pesticide contamination

Fruits and vegetables are believed to healthy diet rich in fiber. But the latest health report actually found 67 kinds of pesticides on fruit and ultimately make 'dirty' vegetable.

Environmental Working Group, which is a U.S. nonprofit group that focuses on the problem, researching almost 100,000 fruit and vegetables that are suspected to contain pesticides. This is to determine the fruits and vegetables that have a (waste) residues of hazardous chemicals.

The most concern is the 'dirty dozen' of fruit and vegetables is called, which contains 47-67 pesticides per serving. This is food that is believed to be most vulnerable because it has a soft and thin skin, so it tends to absorb more pesticides.

Pesticides are chemicals used to control, deny, fishing or eradicate the pests, diseases and weeds that have no effect on the plant. Pesticides are often called 'poison' as. But many farmers who use pesticides to prevent damage or decay.

When exposure to pesticides is too much, so that pesticides can cause many health problems like cancer, ADHD in children, disorders of the nervous system and weaken the immune system.

"It's important to know what fruits and vegetables that contain a lot of pesticides," said Amy Rosenthal from the Environmental Working Group, as quoted by CNN on Wednesday (02/06/2010).

Rosenthal also said that his group perform the testing of pesticides after fruit and vegetables are washed with water with high pressure systems from the USDA (USDA high-power water system pressure).

Here's 'dirty dozen' or 12 fruits and vegetables that absorb the most pesticides:

Celery, Peaches, Strawberries, Apples, Blueberry, Nectarine (Peach), Peppers, Spinach, Cherries, Potatoes, Grapes, Lettuce

While the crust is thick fruit and vegetables to prevent contamination of pesticides. Fruit and vegetable group dubbed the 'Clean 15', ie who have low levels of pesticides or even none at all:

Onions, Avocado, sweet corn, pineapple, mango, peas, asparagus, kiwi fruit, Cabbage, Eggplant, Melon Yellow, Watermelon, Orange Bali, sweet potato, onion

Red tomatoes and fresh herbs can not only be used as a complement to the cuisine, but also can be used as drugs to combat various diseases. In fact, cooked tomatoes more profitable than raw tomatoes.

Scientists from the National Center for Food and Safety in Illinois revealed that eating tomatoes can help reduce the risk of cancer, osteoporosis and heart disease.

Not only fresh raw tomatoes, cooked tomatoes or a mixture of food turned out to provide more benefits.

According to scientists, fresh red vegetables are a source of foods containing lycopene (a powerful antioxidant) majority. And unlike other fruit or vegetable, the content of antioxidants in tomatoes are potentially more after cooking.

The scientists explain that nutrition has a protective mechanism that may help prevent inflammation and blood clotting.

"Utilizing the tomatoes and tomato products may be one simple and effective strategies to help people increase their intake of vegetables, which causes an increase in overall food and ultimately better health," explained Dr. Britt Burton-Freeman and and Dr. Kristin Reimers, who did research, as reported by Dailymail, Saturday (05/03/2011).

According to Dr Reimers, this study underlines the link between eating tomatoes and reduce the risk of cancer, heart disease and other health disorders.

"The evidence also shows that consumption of tomatoes should be recommended because of the nutritional benefits and because it is simple and effective strategy to increase intake of vegetables as a whole," added Dr Reimers.

This research report has been published in the American Journal of Lifestyle Medicine.

The ability to think normally reduced when the body feels tired. But with a cup of tea, the brain is still guaranteed to be invited to think hard though the body in a state of tired and do not have the energy for physical activity.

Compared with coffee that only rely on caffeine as a fitness booster, tea has other content which is the compound L-theanin. This compound is an amino acid that is able to increase their vigilance and ensure that the brain is always awake in any condition.

Simply by sipping a cup of tea, L-theanin effects can be felt during the next 20 to 70 minutes. Concentration stay awake, the mind can still be relied upon even if the physical body can not perform strenuous activity.

Dutch researchers have proved this through a study published recently in the journal Nutritional Neuroscience. In that study, researchers used various types of tea including green tea and involved 44 volunteers aged less than 40 years.

The combination of L-theanin and caffeine in a cup of tea is proven to improve the accuracy of counting volunteers, and reduce drowsiness. Similar effects are not found in other groups who were given placebo in the form of other beverages that do not contain two compounds.

"Our results indicate that the combination of L-theanin and caffeine to maintain cognitive ability or the ability of the brain to think." the researchers wrote in the publication quoted from Dailymail, Sunday (02/27/2011).

The researchers also said the benefits of tea will not be reduced by adding a little milk to variations in the presentation. Milk does not inhibit the absorption of flavonoids and antioxidants and other compounds that are useful in a cup of tea.

In addition to maintaining brain function during fatigue, other benefits of drinking tea has also been frequently shown in various studies. Among them is that it can increase bone density and reduce the risk of cancer, heart attacks and Parkinson's.