

Here is a taste from the Oxford University Press website:
âBrain rotâ is defined as âthe supposed deterioration of a personâs mental or intellectual state, especially viewed as the result of overconsumption of material (now particularly online content) considered to be trivial or unchallenging. Also: something characterized as likely to lead to such deteriorationâ.
Our experts noticed that âbrain rotâ gained new prominence this year as a term used to capture concerns about the impact of consuming excessive amounts of low-quality online content, especially on social media. The term increased in usage frequency by 230% between 2023 and 2024.
The first recorded use of âbrain rotâ was found in 1854 in Henry David Thoreauâs book Walden, which reports his experiences of living a simple lifestyle in the natural world. As part of his conclusions, Thoreau criticizes societyâs tendency to devalue complex ideas, or those that can be interpreted in multiple ways, in favour of simple ones, and sees this as indicative of a general decline in mental and intellectual effort: âWhile England endeavours to cure the potato rot, will not any endeavour to cure the brain-rot â which prevails so much more widely and fatally?â
The term has taken on new significance in the digital age, especially over the past 12 months. Initially gaining traction on social media platformâparticularly on TikTok among Gen Z and Gen Alpha communitiesââbrain rotâ is now seeing more widespread use, such as in mainstream journalism, amidst societal concerns about the negative impact of overconsuming online content.Â
In 2024, âbrain rotâ is used to describe both the cause and effect of this, referring to low-quality, low-value content found on social media and the internet, as well as the subsequent negative impact that consuming this type of content is perceived to have on an individual or society.
It has also been used more specifically and consistently in reference to online culture. Often used in a humorous or self-deprecating manner by online communities, it is strongly associated with certain types of contentâincluding creator Alexey Gerasimovâs viral Skibidi Toilet video series, featuring humanoid toilets, and user-generated âonly in Ohioâ memes, which reference bizarre incidents in the state. This content has given rise to emerging âbrain rot languageââsuch as âskibidiâ, meaning something nonsensical, and âOhioâ, meaning something embarrassing or weirdâwhich reflects a growing trend of words originating in viral online culture before spreading offline into the âreal worldâ.
Now also gaining momentum is a broader, more serious conversation about the potential negative impact that excessively consuming this content might have on mental health, particularly in children and young people. Earlier this year, a mental health centre in the US even published advice online about how to recognize and avoid âbrain rotâ.
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