Your immune system is one important key to good health. Common as they are during winter months, colds and flu aren’t inevitable. That’s especially true once we reach our late 20s or early 30s, when the immune system becomes most effective against these types of bugs. Although resistance starts to drop after age 80, most of our lives should be relatively free of … [Read more...] about Your Immune System: 6 Natural Ways to Make it Stronger