Part of why Special K — the drug, not the cereal — has become so massively popular on the club scene is because of its ability to instantly improve the user's mood. Now doctors in Texas are studying if that effect can help treat cases of severe depression.
Short answer: no. Longer answer: still no. Unless you believe the pseudo-scientific ramblings of psychologist Cliff Arnall, of course, who once developed an equation he thought could predict the day we all feel most depressed.