Disclosed is a functional food composition, which is effective in relieving alcohol-induced hangover symptoms and improving liver function. Sample acquisition is repeated until the signal to noise ratio of an estimated spectrum of the signal, produced from the acquired samples, achieves a target signal to noise ratio. A disabling circuit associated with the recorder detects the presence of the modified video signal. A spiking assembly includes at least one hollow spike having a piercing end for piercing a first container. Fibre Channel routers can be interconnected using a backbone fabric. Therefore, even when the self-aligning torque changes as the distribution of the front and rear driving power is variably controlled, a corresponding assisting force is generated, maintaining a natural steering feeling without causing an unpleasant sensation to the driver.