Related Experiment Video
Updated: Jul 25, 2026

Modified MicroSecure Vitrification: A Safe, Simple and Highly Effective Cryopreservation Procedure for Human Blastocysts
Published on: March 2, 2017
Why is the number of pregnancies among teenagers decreasing?
Abstract:
The issue of pregnancy among adolescent women has received considerable attention from the media. Contrary to common belief, both the numbers and the rates of such pregnancies, even when data on abortion are included, have been declining. Patterns of contraception may account for some of the decrease; however, more study is required. In the past, unmarried teenagers who became pregnant either got married or put the baby up for adoption. Now they can either have an abortion or keep the baby. Solutions to the problems of pregnancy among teenagers must therefore be addressed to these altered social consequences rather than to misleading comments about "epidemics", with their suggestion of increased rates of pregnancy.
Related Concept Videos
Regression Toward the Mean
Conservation of Declining Populations
Meiosis vs. Mitosis
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...
Nondisjunction
Menopause
Birth Control Methods

