Chapter

Examining the Relationship Between Testosterone and Aggressiveness
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57:12 - 1:08:58 (11:46)

Studies have analyzed salivary testosterone in prisoners and blood levels of testosterone post-application of testosterone gel to evaluate the correlation between testosterone and aggressiveness. Results showed that higher levels of testosterone were related to those who have committed a violent crime and those who had aggressive prison rule violations.

Clips
Understanding the biological basis for aggression depends on examining one's environment and taking note of variations in factors such as sunlight and day length that impact hormone and neurotransmitter production.
57:12 - 1:00:51 (03:38)
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Aggression
Summary

Understanding the biological basis for aggression depends on examining one's environment and taking note of variations in factors such as sunlight and day length that impact hormone and neurotransmitter production. As day length and sunlight availability fluctuate, the tendency towards aggression is also susceptible to change for those with certain genetic variants.

Chapter
Examining the Relationship Between Testosterone and Aggressiveness
Episode
Understanding & Controlling Aggression
Podcast
Huberman Lab
Testosterone levels cannot determine a career choice as it cannot be established whether low levels of hormones in firemen (compared to doctors or professor) is a result of their job’s stress level or inherent properties.
1:00:51 - 1:05:02 (04:11)
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Testosterone hormone
Summary

Testosterone levels cannot determine a career choice as it cannot be established whether low levels of hormones in firemen (compared to doctors or professor) is a result of their job’s stress level or inherent properties. Similarly, higher levels of testosterone in female prisoners convicted of violent crimes doesn’t necessarily imply a causal relationship between testosterone hormone and career choices.

Chapter
Examining the Relationship Between Testosterone and Aggressiveness
Episode
Understanding & Controlling Aggression
Podcast
Huberman Lab
A study conducted by Gotts et al in 2014 found that 30 minutes after applying a testosterone gel, there was a significant increase in testosterone and corticomedial amygdala activation, a brain area associated with aggressive behavior.
1:05:02 - 1:08:58 (03:56)
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Testosterone
Summary

A study conducted by Gotts et al in 2014 found that 30 minutes after applying a testosterone gel, there was a significant increase in testosterone and corticomedial amygdala activation, a brain area associated with aggressive behavior.

Chapter
Examining the Relationship Between Testosterone and Aggressiveness
Episode
Understanding & Controlling Aggression
Podcast
Huberman Lab