The issue focused on research studies that researchers say show women have fewer neurochemicals that might protect them from neurodegenerative diseases like Alzheimer's and Parkinson's. Scientists want to study how women can increase their neurochemicals to prevent neurodegenerative diseases.

In an April study in Science Translational Medicine, researchers found that male scientists who study neurodegenerative diseases were much more likely to study fewer neurochemicals that might protect against neurodegenerative diseases.

In the study