The risk of diabetes and heart disease is lower in overweight men who are fit than in normal-weight men who are unfit. Dr. Gary O�Donovan, an exercise physiologist at Brunel University in West London, is leading a study to investigate why the �fat fit� enjoy protection from chronic disease. Throughout 2007, Dr. O�Donovan�s team will measure cholesterol, blood pressure, aerobic power (VO2 max) and other heart disease risk factors in 100 habitual exercisers and 100 sedentary men. The �fat fit� are a rare bunch and Dr. O�Donovan is keen to hear from men who regularly take part in aerobic exercise but have a waist girth of 40 inches or more. If you�re a non-smoking male aged 35 to 50 and would like to take part in the study, send an email to [email protected]