I was being sarcastic. But I also wanted to post to point to the fact that scientists believe that 50% of the people who ate this much sugar would in fact survive!
I was severely depressed a month or two ago, and I went ahead and bought two 2 pound chocolate rich cakes in succession and ate them over a period of 24 hours. Though it didn't kill me, but it was definitely not too upsetting. I still have the urge to just eat huge quantities of sugar, and I am not sure how to control it, but yea it definitely did not kill me or make me sick.
I am otherwise an extremely fit individual (can run 5k in 16 minutes)
Incidentally there are some studies with rats showing that sugar/sweet addicted + cocaine addicted rats prefer their sugar hit over their cocaine hit, and plain sugar-addicted rats when removed from sugar/sweet had opiate-withdrawal like symptoms.
Eating sweets does improve mood. There are several known mechanisms. e.g., carbs facilitate amino acid transport across the blood-brain barrier [1], and wheat stimulates endogenous opiate receptors [2]. But, if you want to influence brain chemistry therapeutically, eating sweets is probably not the best approach. Good luck!