What Brain Scans Can Tell Us About Sex

While a normal MRI (magnetic resonance imaging scan) uses a magnetic field and radio waves to create detailed images of the organs and tissues within the body, an fMRI measures the differences between oxygenated and deoxygenated blood to further track its flow to the brain. With this imaging technique, scientists are able to scan people’s brains in real-time to see what regions are active or inactive during particular…