The key terms to help understand the answers about the duration and intensity of experiences over time would likely include habituation, emotion, and pain. You might be surprised by how scientists use these terms differently than most people. Consider an intro psych textbook or wikipedia.
For example, emotions are generally defined as being brief, ...
No. Two examples:
Some people are comfortable with noises that others cannot tolerate, and genetics plays a part in this.
Genetic Component of Noise Sensitivity, Marja Heinonen-Guzejev, Heikki S. Vuorinen, Helena Mussalo-Rauhamaa, Kauko Heikkilä,
Some people are terrified of things that others are not afraid of, ...