According to a 2010 University of Kentucky study that monitored the link between the immune systems of first-year law students and their hopeful approach to their studies, positive expectations for the future can help strengthen immunity (Source).
We all want to be healthy. One of the best prescriptions to strengthen our immune systems may be our attitude. Why not give it a chance. Instead of viewing your cupboard empty and your glass half full why not seeing your cupboard jam packed full and your cup overflowing and spilling down the street. Life is good and getting better.