video: Dr. Wendy Hill and her students have been studying how kissing unleashes chemicals related to social bonding, motivation and human stress, as well as sexual stimulation. She participated in a news briefing and symposium at the 2009 AAAS Annual Meeting. For more information on Dr. Hill's presentation or to request broadcast clips in beta format, please send an e-mail to media@aaas.org and 202-326-6440. view more
Credit: AAAS