Could key differences in the trillions of bacteria found in the human gut actually affect the risk of becoming infected with HIV? A small, new study suggests the answer may be yes. The intriguing possibility stems from a detailed analysis of the gut bacteria (“microbiomes“) of 55 men, all of whom indicated they have sex…  read on >  read on >

When men become parents, a lot changes in their lives — less sleep and more time devoted to taking care of their children come to mind — but new research now suggests that distinct changes also unfold in a new father’s brain. Researchers scanned the brains of new fathers to discover and study those changes…  read on >  read on >

For many kids with autism, Rhett, a black Labrador retriever, has been a calming and comforting influence in his seven years as a therapy dog. But parents shouldn’t assume that a service pooch is the solution for every child on the autism spectrum, a new study finds. Not all kids with autism enjoy interacting with…  read on >  read on >

Birth control pills that contain both estrogen and progestin do not contribute to growth of enlarged breasts in teens and young women, a new study finds, and may actually be associated with developing less severe breast enlargement. Moreover, the combination pills don’t increase the risk of regrowth after breast-reduction surgery, said researcher Dr. Brian Labow…  read on >  read on >

Terlisa Sheppard knows the value of tracking changes in her body. The Orlando Health patient was eight and a half months pregnant and just 31 years old when she felt a lump under her arm. She left work to get it checked out and “didn’t return back to work because that is the evening that…  read on >  read on >

Former TV newswoman and TODAY show anchor Katie Couric has breast cancer. Couric shared that information Wednesday on Instagram, while also releasing an essay about the experience on her media website. “Every two minutes, a woman is diagnosed with breast cancer in the United States,” Couric wrote on Instagram. “On June 21st, I became one…  read on >  read on >

It’s very frustrating to get a COVID-19 vaccine and then wind up catching the virus anyway. But these breakthrough infections actually do you a world of good, providing a powerful boost to your existing vaccine-induced immune protection, a new study reports. People infected after getting a basic two-dose COVID vaccination experienced an immune response equal…  read on >  read on >