I don’t doubt this study, but I don’t understand what would cause the increased risk.
THere has long been an observed link which has long been denied by Planned Parenthood and others who seek to promote abortion.
Unnatural hormone fluctuations.
Same with the birth control pill.
In brief, pregnancy causes breast tissue to differentiate and mature into milk producing areas. At the end of the pregancy this ‘cell change’ signal is turned off.
A natural miscarriage also results in this signal being tunred off.
An abortion does not result in the signal being turned off and produces an unending stream of cell changes. Some of which are cancerous.
In simple terms, when a women becomes pregnant her body is flooded with hormones that begin the process of numerous changes that need to occur to prepare the body for having a baby. Obviously some of those occur in the breast. When the the pregnancy is ended before term those changes are also halted midstream. Since the baby is never born the breast never get to the point of milk production, but rather stay in a partially changed state of rapid cell growth and change thus setting up the possibility for cancerous cells to form.