Dr. Ariel Cohen-Arkin identifies types of sex, from passionate and intimate to release-oriented and compensatory; He says the most fulfilling experiences combine desire, trust and emotional closeness, while open communication helps couples better express their needs Dr. Ariel Cohen-Arkin is a certified sexologist and couples and family therapist. He heads the Center for Sexual Health at Sheba Medical Center in Tel Hashomer and is a lecturer and researcher. He is in a relationship, a father of two and lives in Ne... [4967 chars]