Originally Posted by
billh
it's because our brains crave to build fat stores for the coming famine
No. Our bodies crave food because the average American eats massive amounts of "addictive" processed food. Your standard supermarket packaged food item is engineered to make you buy more, and to make you want to eat more.
Read the book "Salt Sugar Fat" by Michael Moss. You can get a used copy on Amazon.com for $10. This book will change your diet forever.