One study examined more than 900 family trees, dating hundreds of years back, finding that the tendency to have girls or boys was inherited. Researchers concluded that the father's genes may also be involved in the process.

Some new research may fuel a diet craze — for whole eggs of all things. A study in young men indicates that after resistance exercise, eating whole eggs promotes new muscle formation better than just eating egg whites, even when the amount of protein is the same.

A swallowable capsule may be useful in identifying transit time in the gut as well as the bacteria present. It is a new, simpler way to investigate our gut microbiome. 

Critical self-perception plays a significant role in why women choose not to engage in breast self-examinations, an essential tool in breast cancer prevention.
That's the conclusion of a new study of British women, which found that dissatisfaction with breast appearance leads to an avoidance of self-exams, and consequently, a delay in seeking a medical evaluation. Researchers wrote that this dynamic tends to occur "because it involves exposing one’s physical and emotional self to others."

When it comes to infant feeding, recent survey data from the Centers for Disease Control does more to add to the guideline burden than benefit a baby – let alone the parent. 

Organic chemists are mostly deranged – and that's on a good day. Because simply learning how to name the chemicals they work with is tough stuff. But every so often we'll see a name – or two – that has little to do with chemistry. This pair seems descriptive and ghoulish, so welcome to the crazy world of organic nomenclature. 

Following one of its doctor's pseudoscientific ramblings last year, as well as him promoting anti-vaccine propaganda, the Cleveland Clinic now has this bombshell to deal with. USA Today discovered that a surgeon was accused of "anally raping" two patients, then covered it up.

The nutrients that typically come to mind in connection with osteoporosis are calcium and vitamin D. But if a mouse study is translatable to humans, we may have to add dietary fiber to that list. Fiber is broken down by some gut bacteria to form short chain fatty acids that prevent bone breakdown.

Food deserts are communities that lack a supermarket. Does a supermarket entering this neighborhood improve nutritional purchases? Food policy experts say yes, but our purchases say no. 

The bat population is declining dramatically due to White-Nose Syndrome. A fungus grows on the bats, irritating them and waking them during hibernation. This energy-sapping growth kills them before they wake in the spring. A new study discovered that a genetic mutation in the fungus could save the bats by ridding them of this disease.