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دنیای زبان انگلیسی ( بهروزپور )

لغات و اصطلاح .داستان کوتاه . شعر.جوک .ضرب المثل.اشپزی.رمان. نمایشنامه.متن دوزبانه

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مژگان بهروزپور دوشنبه 2 اسفند 1389 ساعت 17:42

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The Venus Flytrap, Dionaea muscipula, is a carnivorous plant that catches and digests animal prey—mostly insects and arachnids. Its trapping structure is formed by the terminal portion of each of the plant's leaves and is triggered by tiny hairs on their inner surfaces. When an insect or spider crawling along the leaves contacts a hair, the trap closes if a different hair is contacted within twenty seconds of the first strike. The requirement of redundant triggering in this mechanism serves as a safeguard against a waste of energy in trapping objects with no nutritional value.

The plant's common name refers to Venus, the Roman goddess of love, whereas the genus name refers to Dione.^[2] Dionaea is a monotypic genus closely related to the waterwheel plant and sundews.

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مژگان بهروزپور دوشنبه 2 اسفند 1389 ساعت 10:24

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Can't Get a Good Night's Sleep? 5 Surprising Reasons

1. Cherries. Fresh and dried cherries are one of the only natural food sources of melatonin, the chemical that controls the body's internal clock to regulate sleep. Researchers who tested tart cherries and found high levels of melatonin recommend eating them an hour before bedtime or before a trip when you want to sleep on the plane.

2. Bananas. Potassium and magnesium are natural muscle relaxants, and bananas are a good source of both. They also contain the amino acid L-tryptophan, which gets converted to 5-HTP in the brain. The 5-HTP in turn is converted to serotonin (a relaxing neurotransmitter) and melatonin.

3. Toast. Carbohydrate-rich foods trigger insulin production, which induces sleep by speeding up the release of tryptophan and serotonin, two brain chemicals that relax you and send you to sleep..

4. Oatmeal. Like toast, a bowl of oatmeal triggers a rise in blood sugar, which in turn triggers insulin production and the release of sleep-inducing brain chemicals. Oats are also rich in melatonin, which many people take as a sleep aid..

5. Warm milk. Like bananas, milk contains the amino acid L-tryptophan, which turns to 5-HTP and releases relaxing serotonin. It's also high in calcium, which promotes sleep.

http://health.yahoo.net/caring/5-foods-that-help-you-sleep

مژگان بهروزپور دوشنبه 2 اسفند 1389 ساعت 10:17

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