medical fields and specialties

Many women underestimate breast density as a risk factor for breast cancer, study finds

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Many women underestimate breast density as a risk factor for breast cancer, study finds

CNN — Dense breast tissue has been linked to an up to four times higher risk of breast cancer. However, a new study suggests that few women consider breast density to be a significant risk factor. The study, published in JAMA Network Open, surveyed 1,858 women aged 40 to 76 from 2019 to 2020 who … Read more

Origins of plague may have emerged centuries before outbreaks, study finds

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Origins of plague may have emerged centuries before outbreaks, study finds

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. CNN — In the largest DNA analysis of its kind, scientists have found evidence to suggest that historical plague pandemics, such as the Black Death, were not caused by newly evolved strains of bacteria, but … Read more