Many of us depend on a pill to get through a transcontinental flight. Soon we may depend on another one to help us function after we land. Like melatonin on steroids--literally--this new medication aims to help our circadian rhythms better adjust to new time zones, using a steroid-based compound. It'll be awhile before this possible miracle drug is commercially available; still, we're curious: Would you use it? Let us know in the comments.