Speaking about hot or cold [in this case ice]- looking at nature - the sun rise and the sun set, and the comfort zone experienced by a human between the rising and the setting period- this period is neither too hot nor too cold, thus too hot or too cold is never comfortable , and what is too hot or too cold is a matter of individual choice and comfort. Thus a via media temperature is always good for health, true to the saying 'too much of any thing is always bad in the long run'.