Final answer:
Quitting coffee "cold turkey" can result in withdrawal symptoms such as headaches, depression, anxiety, irritability, loss of appetite, lack of motivation, reduced mental performance, and sleep disturbances.
Step-by-step explanation:
Quitting coffee "cold turkey" can lead to several withdrawal symptoms. These symptoms can include headaches, depression, anxiety, irritability, loss of appetite, lack of motivation, reduced mental performance, and sleep disturbances. These symptoms usually peak in the first day or two and then lessen over time, although the craving for coffee may persist for months. It is important to gradually reduce caffeine intake to minimize these withdrawal symptoms.