> The problem there is that subject well-being is time-variant. > If I ask you 3 seconds apart, though [...] would you not expect consistent results? I comple

> The problem there is that subject well-being is time-variant. > If I ask you 3 seconds apart, though [...] would you not expect consistent results? I completely agree with your original comments about lazy writing by the OP. But these all seem besides the point. Our bodies and minds go through all sorts of states, some cognitively introspectable, some not. "Happiness", whatever it may be, is what it is and need not conform to your presumptions. That's the point of studying it. Nothing about its fluctuations or the way these are felt by an individual are a problem per se with the research. It just means it's hard to do, and we may not know a whole bunch about it.