Stimulation: Too much could hurt when you are young.
Stem cell therapy: When will it help the heart?
Heart muscle is never replaced if it dies in a heart attack. Muscle cells grown from stem cells can briefly help broken hearts. Could More
Spinal cord injury
A combined nerve-graft and enzyme treatment restored breathing to 9 of 11 rats. More
Maggots, leeches, parasitic worms
Meet three gross “biotherapies”: Leeches suck blood after surgery. Maggots clear dead tissue from wounds. Parasitic worms fight More
Traumatic brain injury
Charges that NFL “deliberately and fraudulently concealed” … link between head impacts and brain damage. What is the science of More
Stem cell battle resumes
A federal court has thrown the field of embryonic stem cell research into confusion. Last week, research that destroys embryos could More
Growing limbs, healing limbs
Embryonic stem cells
Pres. Obama has removed some limits on studies of cells that can become any body cell. What was lost in eight years of limits on More
Reading the brain; controlling the muscles
A single neuron in the brain may deliver enough information to control a muscle. These results could eventually help bypass the spinal More
Gold medal for exercise: Key to long, healthy life
Activity is not just for the heart: For older people, it spells longevity, mobility, independence. More
Brain electrodes allow monkeys to move robot arm and feed themselves. Experiment proves it’s possible to bypass spinal cord to create More
Restoring Vision, Hearing and Movement
New electronics, new sensors and new electrodes promise new hope for people with grave nerve disabilities. More
Young Brains: Danger in the Operating Room?
Small doses of alcohol can kill brain cells in young lab animals. In people, they cause fetal alcohol syndrome. Young brains, in danger More
Spinal-Cord Injury: I Think, Therefore I Move?
New device translates brain signals into action, bypassing a destroyed spinal cord. Could this type of gadget help overcome paralysis? More