Brain implant lets paralysed man feed himself using his thoughts

The sensors record brain signals created when Kochevar imagines moving his arm, and relay them to a computer

Closer you live to busy road, higher the chance of dementia
Feeling of discrimination can take away your sleep: Study
German hospital uses therapy to 'treat' paedophiles
Changes to city design can have 'significant' impact on health: Study
Cannabis: The new California gold rush
Courteney Cox regrets procedures to fight ageing
Charlie Sheen urges other HIV-positive stars to come forward and lift stigma 
United Nations supports 'brelfies' to encourage breastfeeding