Quote by Robert M. Sapolsky

“Thus, shorter refractory periods mean a higher rate of action potentials. So is testosterone causing action potentials in these neurons? No. It’s causing them…

— Robert M. Sapolsky

“Testosterone also increases confidence and optimism, while decreasing fear and anxiety.5 This explains the “winner” effect in lab animals, where winning a fight increases…

— Robert M. Sapolsky

“John Archer in a definitive 2006 review, “There is a weak and inconsistent association between testosterone levels and aggression in [human] adults, and ……

— Robert M. Sapolsky

“So testosterone does subtle things to behavior. Nonetheless, this doesn’t tell us much because everything can be interpreted every which way. Testosterone increases anxiety—you…

— Robert M. Sapolsky

“testosterone’s actions are contingent and amplifying, exacerbating preexisting tendencies toward aggression rather than creating aggression out of thin air.”

— Robert M. Sapolsky

“Importantly, maternal stress impacts fetal development. There are indirect routes—for example, stressed people consume less healthy diets and consume more substances of abuse. More…

— Robert M. Sapolsky

“When a rat wins a fight, the number of testosterone receptors increases in the ventral tegmentum and accumbens, increasing sensitivity to the hormone’s feel-good…

— Robert M. Sapolsky

Sex increases brain growth.

— Anonymous

“Testosterone rots the brain . . .”

— S.M. Stirling

Sex actually boosts brain growth.

— Anonymous

“Two complications illustrate some endocrine principles.fn16 Estrogen contributes to maternal aggression. But estrogen can also reduce aggression and enhance empathy and emotional recognition. It…

— Robert M. Sapolsky

Testosterone makes you completely out of control, but that's okay.

— Jen Kirkman