Today, more than 5.1 million Americans live with Alzheimer’s disease, a devastating type of dementia that plagues memory and thinking. That number is expected to triple in the coming decades. Moreover, according to a 2012 survey, Americans fear Alzheimer’s more than any other disease.

But studies looking into treatments for Alzheimer’s disease have been frustratingly disappointing. Over the last decade, more than 100 human trials aimed at Alzheimer’s disease treatment have been conducted with little success.

High levels of saturated fat in the blood could make an individual more prone to inflammation and tissue damage, a new study suggests.

Received wisdom on the health risks of eating saturated fat has been called into question recently. This new research supports the view that excessive consumption of saturated fat can be bad for us.

Scientists from Imperial College London studied mice that have an unusually high level of saturated fat circulating in their blood. The research, published today (3 September 2015) in Cell Reports shows that the presence of saturated fats resulted in monocytes - a type of white blood cell - migrating into the tissues of vital organs.

Contrary to popular belief, the worst injuries baseball catchers face on the field come from errant bats and foul balls, not home-plate collisions with base runners, according to findings of a study led by researchers at the Johns Hopkins University School of Medicine.

The research, done in collaboration with Baltimore Orioles trainers Brian Ebel and Richard Bancells, involved analysis of all catcher injuries during major league baseball games over a 10-year period.

Researchers have identified a mutation in plants that allows them to break down TNT, an explosive that has become highly prevalent in soil in the last century, particularly at manufacturing waste sites, mines, and military conflict zones.

TNT, or 2,4,6-trinitrotoluene, is a toxic and persistent environmental pollutant that accumulates in the roots of plants, inhibiting growth and development. The identification of a plant mechanism that not only evades the negative impacts of TNT, but breaks down this harmful substance could lead to improved revegetation and remediation of TNT-contaminated sites.

Green frogs in the suburbs are seeing a gender revolution.

A new Yale study shows that estrogen in suburban yards is changing the ratio of male and female green frogs at nearby ponds. Higher levels of estrogen in areas where there are shrubs, vegetable gardens, and manicured lawns are disrupting frogs' endocrine systems, according to the study. That, in turn, is driving up the number of female frogs and lowering the number of male frogs.

The research appears in the journal Proceedings of the National Academy of Sciences. It is based on tests conducted at 21 ponds in southwestern Connecticut in 2012.