Some experts think it's because a woman is less likely to ovulate while she's breast-feeding.
There were years, he says, when there was literally nothing said about breast-feeding at all.
"It's kind of crazy that only 20% of people reach the recommended duration of breast-feeding, " says Flaherman.
Now her case has touched off a debate among moms about breast-feeding, alcohol and privacy .
The group's co-founder, Trysta Chavez, said the photos were meant to promote World Breast-Feeding Week in August.
BBC: US military in row over Facebook breast-feeding picture
Testosterone goes down for some women after the delivery, and breast-feeding releases the hormone prolactin, which inhibits arousal.
The Washington National Guard has criticised two servicewomen for being photographed in military uniform while breast-feeding their babies.
BBC: US military in row over Facebook breast-feeding picture
National Guard spokesman Captain Keith Kosik told the BBC that there was no regulation against breast-feeding in uniform.
BBC: US military in row over Facebook breast-feeding picture
"When most of the people who are currently leaders were in training, breast-feeding was really uncommon, " says Stuebe.
Promoting breast-feeding, for example, costs very little and is proven to save lives.
La Leche League International, a breast-feeding advocacy organization, said losing the nursing mothers' provision would set back its cause.
WSJ: Not Just Health Insurance Is at Stake in Supreme Court Ruling
In Scandinavia (where else?), there are many more women legislators, and day nurseries and breast-feeding in public are routine.
More new mothers are breast-feeding these days - 84 percent at this hospital, which has New England's busiest maternity unit.
For much of human history, a woman's reproductive life was dominated by pregnancy and breast-feeding, both of which block menstruation.
When she finally began speaking, it was not to me, but to her infant son Ashvin whom she was breast-feeding.
WSJ: Manil Suri, Author of The Death of Vishnu, on Narrators | Word Craft
This made Dr. Geske Ursin and her colleagues wonder whether the hormonal changes associated with pregnancy and breast-feeding were somehow the reason.
Researchers thought that only hormone-responsive breast cancers would be affected by breast-feeding.
Breast-feeding can also make it easier for women to shed pregnancy pounds.
"It was clear that none of the doctors or nurses knew enough about breast-feeding to figure out what was happening, " Kelly says.
When women have trouble breast-feeding, they're either prodded to try harder by well-meaning lactation consultants or told to give up by doctors.
Of course, we're low on those trained providers, but there are more every day, as medical schools begin to adopt breast-feeding curricula.
Breast-feeding advice, food supplements and better hygiene all make a big difference.
It fell to Ms Boothroyd to extend the prohibition on public breast-feeding.
Our mission is to help raise awareness, educate and support breast-feeding mothers.
BBC: US military in row over Facebook breast-feeding picture
Breast-feeding lowers the risk of later breast cancer of a particularly unfavorable type a kind whose growth is not promoted by hormones.
HIV-positive mothers can still pass the virus on by breast-feeding, so they would need to be provided with formula and taught about bottle-feeding.
Whatever the reason, the bottom line is clear: Breast-feeding offers broad protection against both major types of breast cancer in women of all ages.
The Healthy People 2000 initiative introduced in the US has set a target of 75% of American infants breast-feeding for at least six months.
Oxytocin circulates in us at a base level, with occasional peaks prompted by childbirth, breast-feeding, satisfying sex and emotional interactions not, obviously, in that order.
They've successfully lobbied to include breast-feeding issues on the exams for the American Board of Obstetrics and Gynecology and the American Academy of Pediatrics.
应用推荐