Native to the Mediterranean coast, rosemary, also known as the dew of the sea, is only a kind of evergreen shrub plant, the appearance of this plant is characterized by the plant is upright, the leaves become gray-green, the leaves narrowly pointed, the leaves are not the fragrance of the pine tree, the spring and summer to open a light blue flowers, the summer will be open blue flowers, looks like a small drop of water, so it is called the dew of the sea. Rosemary is also regarded as a memory herb. This plant is not simple, so what are the effects and functions of rosemary? Is it edible?　The efficacy and role of rosemary: 1, rosemary flowers, seeds can reduce headaches, help sleep, prevent the effects of hair loss, but also has a certain antiseptic anti-pain toxicity effect; cooking into a little leaf, can remove the smell of fish; fresh grass can be brewed tea, bathing, sweating refreshing and refreshing; flowers can be distilled to produce aromatic oils, the world's first perfume - Hungarian water is extracted from rosemary. Rosemary extract.　2, to eliminate gas bloating, enhance memory, refreshing and annoying, reduce headache symptoms, improve the phenomenon of hair loss (pregnant women should not drink), rosemary tea has the ability to clear the mind of the fragrance, can enhance the function of the brain, can improve the headache, the transportation of memory, the need for a lot of memory of the students may wish to drink rosemary tea, in addition to cold, bloating, obesity and so on is also very efficacious.　3、Improve speech, vision, hearing impairment, enhance concentration, treatment of rheumatic pain, strengthen liver function, reduce blood sugar, help the treatment of arteriosclerosis, help paralyzed limbs to restore vitality.　4, has a strong astringent effect, conditioning greasy unclean skin, promote blood circulation, stimulate hair regeneration.　Rosemary consumption method: 1, the brewing of tea: rosemary (appropriate amount), hot water (about 400cc), honey or sugar (as needed) to put rosemary into the pot, add hot water, brewing 3-5 minutes, add honey or sugar can be consumed.　2, rosemary is widely used in cooking, fresh young branches and leaves with strong aroma, can eliminate the fishy smell of meat, a few branches of young stems and leaves (do not need to use too much to avoid destroying the original flavor of the food) can be roasted pork ribs (pork chops, lamb chops and beef chops). Rosemary roast chicken, the flavor is particularly good.　3, as a salad with lettuce, in the Sichuan hot if you can add some rosemary leaves, the special aroma is very easy to dish. If you need to heat the dishes for a long time, use dried rosemary or add a little rosemary powder after cooking. Rosemary flowers can also be cold salads, garnish dishes, add flavor and aroma.　4. Rosemary herbal tea is good for the heart, eliminates pain and helps to sleep (Gao, 2000). Usually take 5-10 centimeters of the shoots washed in the tea corridor, brewed for 2-3 minutes, you can drink, the longer the stronger the flavor, the shoots will be added to the lemon soda, the flavor is very good.　5, drink a small cup of rosemary soaked wine every day, can reduce heart attacks. You can also make herb vinegar. And rosemary leaves, mint leaves and fennel leaves placed in boiled water soaked for 20 minutes, filtered can be done as a mouthwash, maintenance of the oral cavity.