Study in mice suggests how anesthesia may fight lung infections

Credit: Martha Sexton/public domain In use for more than a century, inhaled anesthetics like nitrous oxide and halothane have made modern surgery possible. Now, in experiments in mice, researchers at Johns Hopkins and elsewhere have added to evidence that certain...

Neural basis of multitasking identified

Plots that show connection strength between nodes in the brain during the control task (top) and the memory task (bottom). Brain regions are arrayed on both the X and Y axes; the strength of their connection is indicated by the color of the coordinate where they meet....

How much liposuction is 'safe'? The answer varies by body weight

What’s the “safe” amount of fat to remove in patients undergoing liposuction? Rather than a hard-and-fast rule, the answer depends on the patient’s body mass index (BMI), according to a report in the September issue of Plastic and...

Head lice

Head lice: Pediculus humanus capitis, parasitic insects found on the heads of people. Head lice are most often found on the scalp behind the ears and near the neckline at the back of the neck. The lice hold onto the hair with hook-like claws at the end of each of...