Maia Szalavitz "Ten Ways we get the odds wrong"

What does Szalavitz mean in paragraph 3 when she says, "The human brain is exquisitely adapted to respond to risk"? Why, according to Szalavitz, have human beings been unable to develop effective responses to risks posed by "statistics, media coverage, and fear-mongering politicians"? What is a risk thermostat (21)? What does Szalavitz mean when she says that "one person's risk thermostat may have different settings for different types of risks? According to Szalavitz, what are the consequences of overestimating the dangers of the world? How does understanding our "innate biases" (29) help us manage the way we respond to risk?