stim·u·late
(stmy-lt) v. stim·u·lat·ed, stim·u·lat·ing, stim·u·lates v.tr.

1. To rouse to activity or heightened action, as by spurring or goading; excite. See Synonyms at provoke.

2. To excite or invigorate (a person, for example)
with a stimulant. v.intr. To act or serve as a stimulant
or stimulus. [Latin stimulre, stimult-, to goad on, from stimulus, goad.]
stimu·later, stimu·lator n. stimu·lating·ly adv. stimu·lation n. stimu·lative, stimu·la·tory (-l-tor, -tr) adj.

/ Or as Woody Sez, geter gone