When you feel like you’re about to faint, it’s because there’s not enough blood getting to your brain. Even just a few seconds of this can bring on a fainting spell. Combat gravity’s effect on your body by laying down and ensuring your blood is not pooling in your core or legs, sending it back to your heart and brain. It’s best to do this on the ground, if possible. That way, if you do faint you don’t run the risk of rolling off the surface you’re on and hurting yourself. If you’re not in an open area or you’re in public and can’t lay down, sitting with your head between your knees may be the best thing you can do to get rid of the faintness. You may wish to stay in this position until the dizziness goes away. Again, this is all about redirecting the blood to your head. When it’s lower and on the same plane as the rest of your body, your blood pressure stabilizes, your body relaxes, and the feeling that you’re about to faint dissipates. If you’re perfectly healthy otherwise, it’s possible that faintness is due to dehydration. Be sure to keep well hydrated by drinking plenty of fluids, especially water. Juices or sport drinks can work, too. Choose an uncaffeinated drink, if possible. Caffeine dehydrates you, defeating the purpose of the drink. Consider eating something with a little salt. Only do this if you have low to normal blood pressure, though, as salt will elevate your blood pressure. Drink water instead, in that case. If you’re watching your salt intake, go for some unsalted crackers or toast – nothing that runs the risk of making you nauseated. And, of course, avoid salty fried goods like potato chips. Fainting, or even feeling like you’re about to faint, can be quite stressful. To keep your blood pressure and anxiety down, concentrate on your breathing. It’ll lower your heart rate and relax your body, centering it on the here and now.  Sometimes fainting is the result of being nervous. Do you know someone who faints at the sight of blood or on getting an injection? This is a reaction called the vasovagal reflex. The vasovagal reflex causes the heart to slow and blood vessels to dilate or widen. As a result, blood pools in the lower body and not as much reaches the brain. It can be triggered by many things, including stress, pain, fear, coughing, holding your breath, or even urinating. You can also feel faint when you change positions. This is called orthostatic hypotension and can happen when you stand up too fast, but also when you get dehydrated or take certain medicines.
استلق إذا أمكنك. اجلس مع رفع ركبتيك ووضع رأسك بين رجليك إذا لم تستطع الاستلقاء. اشرب الكثير من السوائل لتحافظ على ترطيبك. تناول شيئًا مالحًا. خذ أنفاسًا عميقة عبر أنفك وأخرجها من فمك لتظل هادئًا ومسترخيًا.