weight cycling may be dangerous for your heart , new study suggests . weight may increase the risk of death from heart disease . no increase in either type of death occurred among overweight or obese women reporting weight cycling . twenty - four percent of american men and 38 percent of american women have reportedly been trying to lose weight , and the number of obese individuals who are trying to lose weight is five times higher than those of a normal weight . weight cycling may be dangerous for your heart , new study suggests . obesity increases the risk for some of the leading causes of death in the united states , such as heart disease , stroke , diabetes , and some forms of cancer . obesity is becoming increasingly widespread in the united states , and so are a variety of dieting options . while some of these people lose weight quite quickly , they may be just as quick to regain it . weight are also associated with a 66 percent increased risk for coronary heart disease deaths .