One area in which all investors should have some exposure is healthcare. This is because healthcare is one of the only defensive industries that has substantial growth prospects. These growth prospects come from the simple fact that America's population is growing older, along with the rest of the developed world. This will result in growth due to the fact that older people typically spend more money on healthcare than younger people. As my regular readers likely know, one of my favorite ways to invest in the sector is through the use of closed-end funds. This