people nowadays sitting in front of computer for too long, and our body get too much electron iriadiations. using water to wash all those electron iriadiations away from us maybe is not the best choise. to my personal experience , sunshine is the best material to wash them off, so just step out your bedroom and bath in the sunshine , it can refresh not only your body ,but also your spirits.
so next time when u feel blue or low ,maybe that is because u have get too much garbage from com and u need a bath in the sunshine. why not step out of your room and into the nature when the weather is sunny. get yourself some tea even, u will eventrually feel something change in your body .