Oliver Sacks Quote

We have seen that there are two forms of stimulus which are particularly prone to evoke migrainous reactions in predisposed individuals: inordinate excitations or arousals, and inordinate inhibitions or slumps. Within certain allowable limits (which vary greatly from person to person), the nervous system maintains itself in a region of equilibrium, homeostatically, by means of continuous, minor, insensible adjustments; beyond these limits, it may be forced to react by sudden, major, symptomatic adjustments.

Oliver Sacks

We have seen that there are two forms of stimulus which are particularly prone to evoke migrainous reactions in predisposed individuals: inordinate excitations or arousals, and inordinate inhibitions or slumps. Within certain allowable limits (which vary greatly from person to person), the nervous system maintains itself in a region of equilibrium, homeostatically, by means of continuous, minor, insensible adjustments; beyond these limits, it may be forced to react by sudden, major, symptomatic adjustments.

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