Is getting hit in the head healthy? Of course not. But sometimes, people get afflicted with mental illness and it has nothing to do with fighting. Not EVERYTHING is related to MMA. It sounds like Tony is dealing with some form of psychosis and mania. There’s no literature on bipolar/schizophrenia symptoms deriving from fighting. Just cool it with the CTE talk, it’s not always that simple. Just because Joe Rodan thinks everything is related to head trauma doesn’t mean it’s true.
Actually there IS literature that links CTE to schizophrenia.
This article quotes a scientific study, that says you’re 1.6 times more likely to develop Schizophrenia if you have have had a TBI.
“The results show people who have suffered from a
traumatic brain injury (TBI) are 1.6 times more likely to develop schizophrenia compared with those who have not suffered such an injury.
The risk was particularly high in those with a family history of schizophrenia.
Previous studies regarding TBI and schizophrenia have yielded mixed results as to whether the conditions are linked. The new study is one of the first to pool information from past research in a systematic way to get an indication of the risk.”
https://www.scientificamerican.com/article/head-injury-may-cause-mental-illness/
This is another study and the results were mixed. Also, it only studies childhood TBI (Traumatic brain injury) as it relates to developing schizophrenia.
“Our analysis did not support the hypothesis that childhood or adolescent head injury is more likely to be associated with later schizophrenia.
23,
24 However, this subgroup analysis was based on just 3 studies.
13–
15Two of these studies
14,
15 did find significant associations between childhood or adolescent onset TBI and later schizophrenia but the largest study did not find an association.
13 Previously, Wilcox and Nasrallah
24 reported a highly significant 10-fold increase in risk for schizophrenia following head injury before the age of 10 years, but this study was not included in the meta-analysis because it used surgical controls.”
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3196949/
