how many glass of water should a person drink?

A healthy indidual need to take 3 litres of water a day irrespoectibve of the season. In summer you need to take more because of perspiration. ^ glasses of water if it is of 500ml. taking more water helps kidneys , circulkation, skin and toxic gets lost and make us healthy. It is good to avoid kidney stones and also many a skin problems. take enough water and be cool.