Extra poundsWe all know very well that peopleoverweight people are at higher risk of developing diabetes, hypertension and heart attacks. But as American scientists have found out after studying the body mass index of 2.3 million of their compatriots, a small amount of extra kilos has a protective effect. A slight excess of weight makes the body less susceptible to diseases. How can this be explained? "We don't know yet, but the fact remains," says Dr. Joan Manson from Harvard Hospital. It seems that now there is no need to go on a diet before the beach season.
