Cold drinking has the opposite effect, it lets temporarily decrease your body temperature. This is sensed by the thermostat in your brain. This ensures that your temperature will rise again. So you get extra hot. By drinking lukewarm (herbal) tea the reverse happens. The heat of the drink provides an increase in your body temperature. And your body reacts to lower your thermostat.
British researchers recommend milk as thirst quencher. The ’white motor’resists better to dehydration than sports drinks and water. Milk contains minerals such as potassium and sodium. These salts retain moisture, but leave the body through perspiration. A deficiency increases the risk of dehydration.
Alcohol and coffee are real malefactors, they attract (much) moisture from your body, making you even just more thirsty!