Traditionally, some textbooks from the United States used a system of six kingdoms (Animalia, Plantae, Fungi, Protista, Archaea/Archaeabacteria, and Bacteria/Eubacteria) while textbooks in Great Britain, India, Australia, Latin America and other countries used five kingdoms (Animalia, Plantae, Fungi, Protista and Monera).
For other uses, see Placebo (disambiguation) and Placebo effect (disambiguation). The placebo effect can be produced by inert tablets, by sham surgery, and by false information, such as when electrical stimulation is turned off in those with Parkinson's disease implanted brain electrodes.
Other Causes. Although a vitamin B12 deficiency may be responsible for your loss of balance, other conditions may also cause this common symptom. Dizziness, balance problems and light-headedness may occur due to a sudden drop in blood pressure, dehydration, allergies, labrynthitis or Meniereâs disease.