Women have a hold on their emotions.
Boys have lower levels of the neurotransmitter serotonin than girls.
Serotonin inhibits impulsiveness, which may explain why more men than women take off like rockets at the start of an ultramarathon. And many miles later, you see them sitting on a rock by a river wondering what the heck happened. Trason, needless to say, doesn't do that. She's more, Anderson muses, methodical. But at the same time, you can't get too far behind the competition.