Cigarette smoking appears to be a risk factor for tuberculosis infection, according to findings from a review of the literature and pooled analysis of studies,Kirk R.Smith,of the University of California ,Berkeley, and colleagues searched eight databases for relevant articles on the topic and identified 24 that met their inclusion criteria. Taken together, the data point to a marked increased the relative risk of TB infection and disease among current and former smokers compared with nonsmokers. There did not appear to be an increased relative risk for death from TB in association with smoking in people with active tuberculosis, the researchers note.
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.
Comments