𝔰𝔢𝔯𝔬𝔱𝔬𝔫𝔦𝔫 || the 100
serotonin /ˌsɛrəˈtəʊnɪn/ noun [BIOCHEMISTRY] ⇒ a compound present in blood platelets and serum, which constricts the blood vessels and acts as a neurotransmitter. ǝuoɯɹoɥ ʎddɐɥ ǝɥʇ 𝘸𝘦 𝘢𝘳𝘦 𝘵𝘩𝘦 𝘩𝘶𝘯𝘥𝘳𝘦𝘥 𝘺𝘦𝘢𝘳𝘴, 𝘵𝘳𝘢𝘱𝘱𝘦𝘥 𝘣𝘦𝘵𝘸𝘦𝘦𝘯 𝘴𝘦𝘤𝘰𝘯𝘥𝘴. 𝙩𝙝𝙚 𝙬𝙤𝙧𝙡𝙙 𝙬𝙖𝙨 𝙘𝙤𝙡𝙡𝙖𝙥𝙨𝙞𝙣𝙜...