On the surface, this may not
initially seem like such a bad thing, but
over time, impaired or lowered cortisol production can lead to poor immunity, increased inflammation and disruption of
sleep hygiene.
The third and most convincing type of evidence that long - term
sleep habits are associated with the development of numerous diseases comes from tracking the
sleep habits and disease patterns
over long periods of time in individuals who are
initially healthy (i.e., longitudinal epidemiological studies).