Weak willpower & procrastination caused by dopamine hypofunction is one of those neurological deficiencies which effort alone can't overcome. Happily, in our transhuman paradise, even the most lethargic spirit can move mountains.
Here's just one: Even talking about posthuman psychological superhealth is morally frivolous. Another? Promoting superhappiness may lead to what one may call, informally, "inappropriate" behavioural responses.
M. Andersson, J. Glass, und R. Simon. Social Indicators Research, 115 (3):
945-961(2014)First published online: January 19, 2013, http://dx.doi.org/10.1007/s11205-013-0244-8. (ISSP).