Richmond International Airport will conduct a full-scale emergency response training exercise on Thursday to comply with FAA regulations.Preview: Missing out of a little sleep can potentially increase the risk of heart failure and artery disease. A new study found that short-term sleep deprivation triggers proteins linked to heart disease, even after just three nights. It also appears to make exercise less effective in triggering the proteins that help the heart. The study was published in the journal Biomarker Research.