In Lisbon, the waiting area of Portugal's biggest maternity hospital is empty. You can hear the hum of soda machines across the hall. There's just one expectant father, pacing the room.
Mario Carvalho, 40, has a toddler son and now awaits the birth of his baby girl.
"Today, I hope!" he says with a nervous smile.
The birth of a new baby is a joyous occasion. But in Portugal, it's an increasingly rare one. Since the economic crisis hit, the country's birthrate has dropped 14 percent, to less than 1.3 babies per woman — one of the lowest in the world.
Poor countries are starting to realize something that richer ones sometimes forget: Basic, inexpensive measures can have dramatic impacts on the health of a country. And they can save thousands of lives.
Take, for instance, the situation in Ethiopia.
The country used to have one of the highest rates of child mortality in the world.