Kathmandu. To protect yourself from unbearable heat and scorching sun, it is often advised to drink plenty of water. Even while staying indoors during the summer, one tends to sweat.In such weather, having a dry mouth and feeling thirsty is normal. However, if your mouth starts feeling dry again shortly after drinking water, do not make the mistake of ignoring it as just thirst. A persistently dry mouth can also be a warning sign from your body-1. Dehydration:The primary and most common cause is dehydration, or a lack of water in the body. In summer, a lot of water leaves...