Why women freeze their eggs

Yale professor Marcia C. Inhorn's new book Motherhood on Ice: The Mating Gap and why women freeze their eggs.

Inhorn talked to more than 150 women who had pursued egg freezing.

She says women freezing their eggs tend to be educated, successful professional women who want to be moms.

Women in tech fought to get egg-freezing benefits for single women in tech firms.

They felt it was discriminatory not only for them, but also for LGBTQ women workers.

But egg freezing has taken off around the world, and it's a global technology at this point in time, she says.