Besides being a beneficial beverage for your brain and overall health due to the effects of powerful antioxidants known as flavenols, does drinking hot tea on a warm day cool you down? According to About.com, it does not.
According to thermodynamics, more heat is gained through drinking hot liquid than is lost through perspiration. However, by actually increasing your net temperature, drinking hot tea may increase the rate of cooling - providing a sensation of chill through increased sweat profusion. So, scientifically it is not true but experientially it may be perceived as so. Another example of the conundrum of experiencing in the brain the impulses provided by our nerve endings as 'reality.' Taking it to an extreme - cognitive hackers may impact our perception of reality by hijacking this CNS datastream and reorganizing the packets of information...enter the matrix.