The key is blood volume. Doing "exercise that feels somewhat strenuous" for at least 15 minutes in the morning and evening, when temperatures are relatively comfortable, and then drinking a glass or two of milk within 30 minutes increases the amount of blood in the body. For those who do not like milk, yoghurt is also effective. When blood volume increases, the body's ability to adjust its temperature improves, and heat dissipates easily through sweat from the skin's surface, making the body more resilient in the heat. [...] He added that if one continues exercise that feels a little tough and drinks milk for one to two weeks, blood volume will increase by 100 to 200 milliliters. Nose drinks milk after walking briskly for at least 15 minutes daily. His body has become more resistant to the heat, and he is spending the summer comfortably.