“We focused on the commonest Y-chromosome lineage in Europe, carried by about 110 million men — it follows a gradient from south-east to north-west, reaching almost 100 percent frequency in Ireland,” the study’s leader, Mark Jobling, of the University of Leicester, stated in a university news release. “We looked at how the lineage is distributed, […]

Here are some of the latest health and medical news developments, compiled by the editors of HealthDay:
Artificial Muscles Help Facial Injury Patients Blink
A new technique for implanting artificial muscles enables people with facial injuries to blink, which is essential for healthy eyesight.
The artificial muscles developed by facial surgeons at the University of California, Davis consist […]

The researchers also theorize that viral infections can cause appendicitis.
“Just as the traditional appendix scar across the abdomen is fast becoming history, thanks to new single-incision surgery techniques that hide a tiny scar in the bellybutton, so, too, may the conventional wisdom that patients with appendicitis need to be operated on as soon as they […]