Related by context. Frequent words. (Click for all words.) 53 Guttmacher 52 David Popenoe 52 Lydia Saad 52 Mark Milke 50 bmj.com today 50 Steve Camarota 50 Alan Guttmacher Institute 50 Cathy Schoen 49 Psychological Bulletin 49 studys 49 bmj.com 49 Woolhandler 49 journal Fertility 48 Heather Turgeon 48 Mark Bauerlein 48 journal Epidemiology 48 Finkelhor 48 George Borjas 48 Steven Camarota 48 Heather Boushey 48 Herbenick 48 Carsey Institute 47 Waldfogel 47 Shaw Crouse 47 Barbara Dafoe Whitehead 47 Liz Pulliam Weston 47 Jack VanDerhei 47 MacDorman 47 William Saletan 47 Guttmacher Institute 46 Henry Wechsler 46 D' Vera 46 teen birthrate 46 Richard Donnell Hometrack 46 Bazelon 46 journal Human Reproduction 46 journal Alcoholism Clinical 46 CDC Morbidity 46 Kaiser Family 45 Sex Roles 45 Heritage Foundation heritage.org 45 Kristen Gerencher 45 journal Psychosomatic Medicine 45 Dr. Thomas Insel 45 Lyubomirsky 45 Ropeik 45 journal Obstetrics & 45 uninsurance 45 Amitai Etzioni 45 Pertman 45 Justin Wolfers 45 Peter Suderman 45 Paul Fronstin 45 Mayo Clinic Proceedings 45 Birth Defects Prevention 45 Devon Herrick 45 Holt Lunstad 44 Arthur Caplan 44 Jackie Perlman 44 By Katie Klingsporn 44 RH Reality Check 44 Wirthlin Worldwide 44 Thoraya Obaid 44 AIHW 44 Psychosomatic Medicine 44 Carnethon 44 Orbuch 44 Dr. Gail Saltz 44 journal Sleep 44 By MIKE VOSS 44 nonpartisan Pew Hispanic 44 Richard Suzman 44 Jodi Jacobson 44 Gerontologist 44 Adam Pertman 44 Alcoholism Clinical 44 Andy Dehnart 44 Mark Fendrick 43 journal Molecular Psychiatry 43 Sexually Transmitted Disease 43 Janice Crouse 43 journal Clinical Infectious 43 Premarital sex 43 Joachim von Braun 43 Andrew Cherlin 43 NATSEM 43 suicide ideation 43 Thomas Insel 43 journal Cancer Epidemiology 43 David Dooks BBA 43 Abstinence Clearinghouse 43 Lawrence Mishel 43 Leonard Sax 43 Niels Veldhuis 43 Pew Hispanic Center 43 journal Sexually Transmitted 43 Employment Policies 43 De Kun 43 journal Gastroenterology 43 correlational 43 journal Hypertension