Doctors treating seven-times Formula One world champion Michael Schumacher for injuries suffered during a skiing accident have started lowering his sedation level to wake him up from an artificial coma, his agent said on Thursday. Schumacher slammed his head on a rock while skiing off-piste in the French Alps resort of Meribel on December 29, Reuters reported. -- SPA 23:40 LOCAL TIME 20:40 GMT تغريد