Teenagers who plan parenthood

Teenagers who plan parenthood.

It is clear that a variable number of teenage mothers have, to some extent, planned parenthood. From an evolutionary perspective, it could be argued that teenage childbearing may in fact be a positive adaptive mechanism for humans raised in a hostile environment. Life history theory suggests that in risky and uncertain environments the optimal reproductive strategy is to reproduce early in orde...

Teenagers: marriages, divorces, parenthood, and mortality.

And the cosmopolitans plan parenthood...!

Teenagers Who Leave Home

Breast cancer risk among women who start smoking as teenagers.

OBJECTIVE To examine the effect of smoking on breast cancer risk in a large population-based cohort of women, many of whom started smoking as teenagers. METHODS We followed 102,098 women, ages 30 to 50 years, completing a mailed questionnaire at recruitment to the Norwegian-Swedish Cohort Study in 1991/1992, through December 2000. We used Cox proportional hazard regression models to estimate ...