Your body is extremely efficient.  Those who have had a cast know that once the cast comes off after a few months, the muscles in the area atrophy or shrink.  This is because the muscle has been dormant and the body reduces its capacity in that area  to match the level of activity (if you don't use it, you lose it).  With proper care and attention, one can re-build those muscles again.  This is also true for our capacity to empathize with others or to hold compassion in our hearts.  We can grow our ability to hold compassion with simple practices and by doing so improve our overall health and well-being.  The good news is that even if our ability to hold compassion shrinks over time (perhaps due to life changing situations, etc.), we can regain it by practicing the techniques provided in this program.