https://blogs.mercola.com:443/sites/vitalvotes/archive/2004/06/01/Yo-Yo-Dieting-Weakens-Your-Immune-System.aspxYo-yo dieting, in which a person repeatedly loses and regains weight, may have a lasting negative impact on immune function. Conversely, maintaining the same weight over time appears to have a positive effect on the immune system. It appears that longenCommunityServer 2008.5 SP1 (Debug Build: 31106.3070)