Huperzine A is used for Alzheimer's disease, memory and learning enhancement, and age-related memory impairment. It is also used for treating a muscle disease called myasthenia gravis, for increasing alertness and energy, and for protecting against agents that damage the nerves such as nerve gases.hildren: Huperzine A is POSSIBLY SAFE in children when taken by mouth for a short period of time (less than one month). Pregnancy and breast-feeding: There is not enough reliable information about the safety of taking huperzine A if you are pregnant or breast-feeding.
superpower â(plural superpowers) ( 1 uncountable) Excessive or superior power. ( 2 countable) A sovereign state with dominant status on the globe and a very advanced military, especially the Soviet Union or United States.  1999, David Held, Global Transformations: Politics, Economics and Culture (page 97)
The US was considered a superpower after World War II, when the European powers declined, partly because of the loss of their colonies to independence movements. The war similarly sparked the advance of the Soviet Union to superpower status, and the Maoist takeover did the same for China.Whether the US currently shares superpower status with China is debatable, but China does not yet have an equal international presence.he war similarly sparked the advance of the Soviet Union to superpower status, and the Maoist takeover did the same for China. Whether the US currently shares superpower status with China is debatable, but China does not yet have an equal international presence.