Laura is about the right weight for her age and height. Nevertheless, she fears becoming overweight and whenever she goes on an eating binge, purges the excessive food by self-induced vomiting. It is likely that Lana suffers from:

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.