( First ( , ( ( your mind ) ( ( is ( ( sending signals ) ( to ( your body ) ) ) ) . ) ) ) )
(ROOT (S (ADVP (RB First)) (, ,) (NP (PRP$ your) (NN mind)) (VP (VBZ is) (VP (VBG sending) (NP (NNS signals)) (PP (TO to) (NP (PRP$ your) (NN body))))) (. .)))
First, your mind is sending signals to your body.
(ROOT (S (NP (NNS Hormones)) (VP (VBP send) (NP (NNS signals)) (PP (IN through) (NP (PRP$ your) (NN body)))) (. .)))