The Department of Health & Senior Services website contains helpful resources during extreme heat conditions. Please visit: http://health.mo.gov/living/healthcondiseases/hyperthermia/index.php
Centers for Disease Control and Prevention (CDC) guidance: Your best defense against heat-related illness is prevention. Staying cool and making simple changes in your fluid intake, activities, and clothing during hot weather can help you remain safe and healthy. Please visit: http://www.bt.cdc.gov/disasters/extremeheat/
National Institute on Aging Newsroom, NIH provides heat-related illness advice for older people: http://www.nia.nih.gov/newsroom/2012/06/hyperthermia-too-hot-your-health