1)A questions meaning simply 'how are you?' or 'how are things going?'. Sometimes taken very seriously by the recipient.
2)A question used to fill an awkward silence.
1)John Doe: So, how's life?
Jane Doe: Good, good. And yourself?
2)Jane Doe: I cut myself.
(awkward silence)
John Doe: So, how's life?
Someone who is addicted to obtaining money and building wealth. A money addict and fanatic. Breadheads often work more than one full-time job, and some even participate in illicit activities to "obtain the bread".