World Changes Due to the Telephone. Within 50 years of its invention, the telephone had become an indispensable tool in the United States. In the late 19th century, people raved about the telephone's positive aspects and ranted about what they anticipated would be negatives.
When you hold the ice cube for a very long time, the enzymes deactivate. Blood circulation stops. The brain initiates impulses for blood circulation. The local nerves therefore get irritated and produce a sensation of heat.
While step1 naturally makes one feel cold, step2 leads to rapid loss of heat from body owing to higher temperature difference between body and surrounding, which also makes one feel cold. This in a nutshell can be the simplified explanation.