Why Do I Feel Dizzy, Nauseous, and Want to Vomit When Its Hot?

During summer, the hot weather can significantly affect our appetite, but this usually doesn't last long and is considered a normal phenomenon. However, some people may experience symptoms such as dizziness, nausea, and vomiting, which can be quite uncomfortable. If these symptoms persist for a long time, they can have negative impacts on one's health and daily life. Therefore, understanding the causes of these symptoms is important. So, what causes dizziness, nausea, and vomiting in hot weather? Let's take a look.

1. What Causes Dizziness, Nausea, and Vomiting in Hot Weather?

Nausea, dizziness, vomiting, fever, and general weakness are early signs of heatstroke. The hot and humid weather can easily damage the spleen and stomach, leading to symptoms such as nausea and vomiting. Additionally, the summer heat can cause irritation and increased sweating, resulting in loss of appetite, dizziness, and nausea. Prolonged exposure to air conditioning can also lead to stomach discomfort and nausea. Moreover, staying up late and lack of rest due to the hot weather can weaken the immune system and the resistance of the gastric mucosa, leading to symptoms such as stomach pain, nausea, and vomiting.

2. What to Do in Case of Heatstroke?

1. If you or someone else shows signs of heat exhaustion or mild heatstroke, the first step is to quickly move out of the high-temperature environment that caused the heatstroke and rest in a cool and ventilated place. Drink plenty of salty and refreshing beverages. You can also apply cooling ointment or essential oil to the forehead and temples, or take traditional Chinese medicine such as Rendan, Shidi Shui, or Huoxiang Zhengqi Shui.

2. If blood pressure drops or the person faints, they should be laid down immediately and promptly taken to the hospital for intravenous saline infusion. For severe heatstroke cases, in addition to immediately moving the person out of the high-temperature environment to a cool and ventilated place, they should be promptly transported to the hospital for comprehensive treatment.

3. If the hospital is far away, the patient should be removed from the high-temperature environment and wrapped in wet sheets or clothes. A powerful fan should be used to increase evaporative cooling. While waiting for transportation, immersing the patient in a lake or river, or even cooling them with snow or ice, can also be an effective method.

4. If the patient starts shivering, the cooling process should be slowed down as shivering can increase core body temperature. (Warning: Take the patient's temperature every 10 minutes and do not allow it to drop below 38.3°C to prevent hypothermia.)