That is true until the feral government makes us all take this drug:
http://psychcentral.com/news/2011/05/27/drug-metyrapone-to-erase-bad-memories/26532.html *
That's scary!
On the lighter side, it sounds a bit like Gleemonex.
Mrs. Hurdicure: [looking at drug] What will this do?
Dr. Cooper: Well, it reaches into your brain “chemically,” and then it locates your happiest memory “chemically,” then it locks onto that emotion and freezes it “chemically,” and then it keeps you happy, happy.
SOMA - Brave New World, Aldous Huxley, 1932 .................