hamburg based startup rachel brain is also tapping into new target audiences they create video games that can be played without a joystick or controller instead players use gestures to control the game which is thought to stimulate the brain. to be asked to calmly not so on combining majority neural physiological and cognitive challenges and memories that's what we're trying to achieve that's optimal for therapy and prevention. and so on. and so it seems that keeping physically and mentally fit through gaming has proven not only to be great fun but also to be a successful business. so what is it that makes the game a success it definitely helps if developers create a kind of community for example with only access and live ops though a real gaming it is one that manages to take the leap from the virtual world to the