Are there many common health risks involved with drinking powerade everyday without the exercize, as sport drinks are meant for exercizing?

No: Sports drinks such as powerade or gatorade are not meant for only sports or exercising. They maintain the acid-base balance required for normal cellular activities.They are made to quickly replace the fluid lost during exercise or playing sports and restore acid base balance. Some also provide a boost of carbs lost. The only bad thing in sports drinks is the sugar added but its better then sodas.