[Solved] Caffeine is an effective means to reduce erotic desire. Applied Psychology: The use of psychological principles and theories to overcome problems in real-world situations, such as in education, health, and the workplace. Pure Science Research: Pure science research focuses on generating fundamental knowledge and understanding of nature and its laws without immediate consideration for practical applications. Practical Problems: Issues or challenges that arise in everyday life that require solutions which are feasible and applicable in the real world. Mental Processes: Internal cognitive operations that enable humans to acquire, process, store, and retrieve information, such as thinking, reasoning, and remembering.