Cobra pose.

Lie on a belly, bend hands with elbows to sides,fingers directed to each other, low forehead on the floor, slowly raise head, and shoulders,support on hands,slowly bend, and straightening hands,keeping raising body,how you can, not loading, delay in posing this.

 Return back, slowly body low, after a head on a floor a cheek low, relax, repeat again. That a best exercise for spine flexibility, and removing his aches, bad functions, raising mobility for breast, neck vertebra.