6.The findings, which appear in the September issue of Molecular Cell , not only advance knowledge of how cells sense the presence of singlet oxygen, but also how they turn on critical genes to defend themselves from its effects.
7.This makes sense if you remind yourself that the "fight-or-flight" response is meant to help you either defend yourself from a hungry predator or hightail it out of a dangerous situation -- running or brawling both require plenty of energy to fuel your muscles.
