Home > Medical > Tests and procedures Tests and procedures All sections in Medical » All Diseases » All Symptoms » Medical Schemes » All Medications Tests and procedures Brain chips help prosthetic fingers obtain a sense of touch A set of four brain implants have allowed a 30-year-old man not only control a robot arm but also feel sensations from the individual fingers of the arm. See all Tests and procedures » Tests and procedures Dialysis Dialysis is a life-saving option until a suitable organ donor is found. See all Tests and procedures » Tests and procedures Dissolvable sensor may be implanted in brain after surgery A tiny wireless electronic sensor can be implanted in the brain following an injury, and then completely dissolve when its job is done. See all Tests and procedures » Tests and procedures Surgeons use 3D printing to fix serious skull defects At the Tygerberg Academic Hospital, a team of surgeons performed life-changing operations on two African girls with serious skull defects. See all Tests and procedures » Take action Successful people vs. unsuccessful people Outsmart stress traps Tests and procedures Micro-camera can be injected with a syringe German researchers have built a camera that fits onto the end of an optical fibre the width of two hairs. This could be used as a minimally-intrusive endoscope for exploring inside the human body. See all Tests and procedures » Tests and procedures Electric shock Electric shock is an injury caused by an electrical current passing through the body. See all Tests and procedures » Tests and procedures How to spot bad science Find out how to know if a scientific study is flawed. See all Tests and procedures » Tests and procedures Portable X-ray services becoming more common Proponents of home X-ray services say they help frail patients avoid difficult and potentially hazardous trips to the hospital. See all Tests and procedures » advertisement From our sponsors How to care for your vaginal flora Live healthier Hello? » SEE: Interesting facts about hearing loss Earworms: Let it go Is it bad to sleep with earplugs all the time? SEE: Do women hear better than men? The reason why men often appear not to be listening could be because they actually can't hear you. Confident smile? » Acidic drinks can harm your kids' smiles The facts on bleaching your teeth Am I taking good care of my teeth? Why are my teeth stained? We know the rules – brush your teeth twice a day and floss to keep them healthy. But, have you ever wondered what causes those stains that sometimes appear?