The benefits of watching

A fascinating study taps “mirror neurons” to improve hand strength and dexterity. If I watch a movie of somebody cutting with scissors, More »

Stimulation: Too much could hurt when you are young.

Growing brains need blood. But persistent noise or activity both slow formation of new vessels in the brain of a mouse. Mice aren’t More »

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 »

A combined nerve-graft and enzyme treatment restored breathing to 9 of 11 rats. More »

Meet three gross “biotherapies”: Leeches suck blood after surgery. Maggots clear dead tissue from wounds. Parasitic worms fight More »

Charges that NFL “deliberately and fraudulently concealed” … link between head impacts and brain damage. What is the science of More »

A federal court has thrown the field of embryonic stem cell research into confusion. Last week, research that destroys embryos could More »

Salamanders and fish can regrow perfect limbs and fins after amputation. Can the salamander’s natural regeneration teach us? More »

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 »

A single neuron in the brain may deliver enough information to control a muscle. These results could eventually help bypass the spinal More »

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 »

New electronics, new sensors and new electrodes promise new hope for people with grave nerve disabilities. More »

Small doses of alcohol can kill brain cells in young lab animals. In people, they cause fetal alcohol syndrome. Young brains, in danger More »

New device translates brain signals into action, bypassing a destroyed spinal cord. Could this type of gadget help overcome paralysis? More »