Usually when we feel heated up, we drink ice-cold water or use an AC or cooler or fan. Of course, we will get relief for some time. After sometime, we feel heated up again. The above stated methods only merely decrease external body temperature. It is important to realize controlling internal heat is also needed in order to get the real cooling effect. Drinking lots of water, eating easily digestible foods, including more alkaline water-containing fruits and vegetables in diet, avoiding or reducing caffeine, avoiding or reducing spices, etc. reduces internal heat. Drinking coconut water, buttermilk with lots of water, watermelon and cucumber salads/juices, milk/coconut milk/nuts milk with lots of water, mint leaves or corianter leaves chutney or mixing it with juices or buttermilk and having it several times a day etc. are also very useful remedies to reduce internal heat. Corainder seeds, vetiver/khus roots, khus-khus/chia seeds, naruneendi/Indian Sarsaparilla roots, etc. can be used to boil water. This water can be cooled and kept in earthen vessels. Drinking any of this herbal water helps not only to reduce internal heat, but also it purifies blood. Applying sandalwood paste mixed with rosewater on forhead and pulse points is very effective in reducing heat-caused headache and fatigue. It can be also applied to whole body to reduce rashes and itching during summer. Rosewater can be applied alone too. Sitting or walking under moonlight also helps to reduce internal heat. For those who do exercise/yoga, morning time before sunrise and evening time after sunset are best times of day to have their practice in order to avoid dehydration and fatigue, especially if one is heat sensitive. Pranayamas like Sheethkari, Sheethali, Chandrabhethi are very effective in reducing internal heat and can be done several times a day. Doing these pranayamas in open and clean air increases their effectiveness.