Why losing weight is so hard and gaining weight is so easy

You just went away for the weekend and you came back to find that you gained 5 pounds over the course of 3 days. In your disbelief, you quickly curse the Weight Gods for being so cruel. Sound familiar? This was me last weekend. A little jaunt to Montreal, eating at decadent cafes, packed it on quick. This inspired me to discuss the seemingly unbalanced equation of weight gain vs. weight loss, the facts that surround the issue and how losing the 5 pounds feels so much harder than gaining them: