Drinking eight glasses of water a day helps you remove the waste products in your body. During summers you need more water ,so you need to drink more than eight glasses a day.
As during this time you perspire a lot and if you drink less water, try to compensate by taking more of other fluids. This will help you flush away the waste.
Drinking an adequate amount of water every day is the best treatment for fluid retention. It helps relieve constipation. But when your body is given less water than it needs, it automatically perceives the shortage as a threat to survival and will begin to retain every drop. Water reserves are stored in extra cellular spaces (outside the cells). This water can show up as swollen feet, hands and legs.
Your body can only tolerate certain sodium concentrations. The more salt you eat, the more water your system retains to dilute it. But getting rid of unwanted salt is easy, just drink more water.
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