Is Happiness Measured????

For a long time have been thinking about this. Its like everybody has a happiness account attached to their name.Once the person has reached the allocated level ( dunno who determines that level) all that happens is towards lowering the happiness level. Everything would have been going fine, giving no indication that one has finshed the overall quota that has been allocated....suddenly things take a turn for the worst......if everything had been going fine for a long time then suddenly what ever starts happening is for the worst......as if to bring the happiness levels down....like there cannot be overdraft (even banks allow overdraft...lol)...anyways everybody has to deal with it...guess its called "LIFE".....