he·don·ic ad·ap·ta·tion
noun
Whatever happens to you in life, you get used to it (habituation).
he·don·ic tread·mill
noun
Hedonic adaptation can lead to a vicious cycle, like we are on treadmill.
he·don·ic re·set
noun
Deliberately and strategically enduring a temporary deprivation of one or more pleasures, to slow hedonic adaptation and produce a disproportionate happiness gain.