Prebiotics are food ingredients that stimulate the growth of good bacteria in the colon, as opposed to probiotics, which just dump some new bacteria into the mix. Prebiotics, found naturally in oats, chicory, bananas, onions and some honey, appeared to boost the immune system in early testing [source: Bee].
The two major types of Migraine are: 1  Migraine without Aura (formerly called Common Migraine). This is the most frequent type of Migraine. 2  Migraine with Aura (formerly called Classic or Complicated Migraine).
The main types of primary headaches are: 1  Tension headache â This is the most common type of headache, suffered by approximately 90 percent of the population at some time or other. 2  Migraine headache â The next most common type of headache, migraines affect approximately 28 percent of the population. Cluster headache â The rarest of the primary headaches are cluster headaches, which affect less than one percent of the population.