Cardiology

Substance abuse in pregnancy doubles cardiovascular risk: Study

Pregnant women with a history of substance abuse face a dramatically increased risk of death from heart attack and stroke during childbirth when compared with women without history of substance abuse, a new Smidt Heart Institute ...

Diseases, Conditions, Syndromes

India's Nipah virus outbreak: what do we know so far?

Authorities in India are scrambling to contain a rare outbreak of Nipah, a virus spread from animals to humans that causes deadly fever with a high mortality rate.

Oncology & Cancer

Health workers primed to fight breast cancer in Malawi

Women in rural Malawi are learning how to detect breast cancer thanks to the country's first dedicated training program for health workers, aimed at reducing the burden of the disease.

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Population history of American indigenous peoples

It is estimated, based on archaeological data and written records from European settlers, that from 8 to 140 million indigenous people lived in the Americas when the 1492 voyage of Christopher Columbus began a historical period of large-scale European interaction with the Americas. European contact with what they called the "New World" led to the European colonization of the Americas, with millions of emigrants (willing and unwilling) from the "Old World" eventually resettling in the Americas.

While the population of Old World peoples in the Americas steadily grew in the centuries after Columbus, the population of the American indigenous peoples plummeted. This was somewhat caused by direct conflict and warfare with European colonizers and other Native American tribes, but probably mostly due to their susceptibility to old world diseases [smallpox, influenza, bubonic and pneumonic plagues, etc.] that they had never before been exposed to. The extent (and to a lesser extent the causes) of this population decline have long been the subject of debate.

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