Sucking on a barley sugar raises the amount of glucose in a person's body. What should I do? This article was co-authored by Erik Kramer, DO, MPH. I will be better prepared if it happens again. The medical term for fainting … Tips to Help You Think Clearly, How to handle fainting at the sight of blood. Fainting is mostly caused by standing up too fast, dehydration, medications, or extreme emotions. Eventually, it was found to be a not uncommon condition, "This was extremely helpful, because the women in my family are prone to fainting, and now I know how to help. It's hard to say, since two subjects is an awfully small study. Pretzels and crackers also help with nausea, which is a common cause of fainting. Put them all together and you know you're about to faint. Get into a squatting position (holding your balance against a wall, just in case) and tense your leg muscles repeatedly. What should I do? This is another reason it may be easier to calm down. ", helpful in all its aspects. I appreciate the explanations of "why," not just what to do. Make sure you drink enough water every day. When there's salt in the body, the body then sends water to it. If the issue is a poorly ventilated or over-crowded environment, step outside for some fresh air or open a window. Water and pretzels for the long hikes. If you're stuck in a room and there aren't a lot of options, get them near an open door or window. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/21\/Plan-a-Quincea%C3%B1era-Party-Step-15.jpg\/v4-460px-Plan-a-Quincea%C3%B1era-Party-Step-15.jpg","bigUrl":"\/images\/thumb\/2\/21\/Plan-a-Quincea%C3%B1era-Party-Step-15.jpg\/aid349650-v4-728px-Plan-a-Quincea%C3%B1era-Party-Step-15.jpg","smallWidth":460,"smallHeight":345,"bigWidth":"728","bigHeight":"546","licensing":"