Chinese researchers have taken a step towards removing a protein from prawns that cause an allergic response, without resorting to genetic manipulation. Li Zhenxing led the research at the Ocean University of China.The team revealed that treating prawns with a combination of heat and irradiation significantly reduced the level of reactive proteins called allergens. They took blood from patients with shrimp allergies, added samples of treated and untreated prawn, and measured how antiboides in the blood reacted. They found that levels of "Pen a 1" , one of the major allergens, decreased 20-fold after treatment.Zhenxing's team suggests that irradiation damages the proteins, revealing hidden reactive amino acid residues. Subsequent heating then destroyes the exposed residues. "Radiation and heat seems to be a promising method for reducing the immunoreactivity" said the researchers.
A man usually needs about two or three minutes of stimulation to have an orgasm,a woman generally needs 10 times more. For a man,an orgasm is instinctive.For a woman,it happens only after direct stimulation of the clitoris. A man's climax usually lasts for 10-13 seconds.For a woman,it lasts 6-60 seconds. A man must recuperate after an orgasm but a woman can have repeated orgasms within minutes or in rapid succession. Wonder why a man rolls over and sleeps after? During sex,his body releases oxytocin,a hormone that induces drowsiness.A woman is more relaxed after sex,which is why she wants to talk or cuddle.
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