Word: cortisol
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STRESSED OUT Anxiety during pregnancy can double the risk of having a hyperactive child, possibly owing to exposure to the stress hormone cortisol, say researchers at London's Imperial College. Children's behavior is usually attributed to genes or parenting, the researchers say, but this study suggests there is a chemical component as well...
...artificial ways may also lead to increased stress on the kids, as the parents' anxiety starts to rub off. By four or five years old, the brains of stressed kids can start to look an awful lot like the brains of stressed adults, with increased levels of adrenaline and cortisol, the twitchy chemicals that fuel the body's fight-or-flight response. Keep the brain on edge long enough, and the changes become long-lasting, making learning harder as kids get older...
...artificial ways may also lead to increased stress on the kids, as the parents' anxiety starts to rub off. By four or five years old, the brains of stressed kids can start to look an awful lot like the brains of stressed adults, with increased levels of adrenaline and cortisol, the twitchy chemicals that fuel the body's fight-or-flight response. Keep the brain on edge long enough, and the changes become long-lasting, making learning harder as kids get older...
...music's emotional impact, there is some indication that music can affect levels of various hormones, including cortisol (involved in arousal and stress), testosterone (aggression and arousal) and oxytocin (nurturing behavior) as well as trigger release of the natural opiates known as endorphins. Using PET scanners, Zatorre has shown that the parts of the brain involved in processing emotion seem to light up with activity when a subject hears music...
BRAIN STRAIN Feel like you can't think straight when you're stressed out? You're probably right. Researchers who injected volunteers with cortisol--a hormone secreted during stress--report that those who received the highest doses for the longest period (four days) had the most trouble recalling a story they had just been told. There is a bright spot: a week after the hormone injections stopped, memory was completely restored...