* Bulimia nervosa sufferers or "binge eaters" tend to have irregular periods and have polycystic ovaries even though they have a normal body weight. A study of 34 patients concludes that the irregularities are caused by chaotic eating patterns. The Lancet, 19 September 1992.
* Women who take the pill are twice as likely to become infected with the sexually transmitted disease Chlamydia trachomatis than those who use a barrier cream, according to several recent studies. BMJ, 12 September 1992.
* Doctors' bad handwriting is still killing patients with instructions on prescriptions being misread by pharmacists, according to the Medical Defence Union. Over 60 incidents have been brought to the attention of the MDU since 1985. In one case Inderal was mistaken for Intal and the patient died; in another, a patient received Daonil instead of Amoxil. The patient suffered irreversible brain damage as a result.