Why We Get Fat is an excellent book that investigates this topic: <a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;Why-We-Get-Fat-About&#x2F;dp&#x2F;0307474259&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;Why-We-Get-Fat-About&#x2F;dp&#x2F;0307474259&#x2F;</a><p>In short, for most of us, our fat tissue is regulated primarily through our response to insulin.