What causes dizziness when soaking in a hot spring?

Possible reasons for dizziness when soaking in hot springs include the following: 1. Water temperature too high: Excessively high water temperature can cause excessive relaxation of the body, blood vessel dilation, and a drop in blood pressure, leading to dizziness and other discomforts. At the same time, in high-temperature environments, the body sweats heavily, resulting in fluid loss and blood concentration, which may also trigger dizziness. 2. Oxygen deficiency: When soaking in hot springs, the water contains large amounts of gases such as carbon dioxide and hydrogen. These gases may occupy space needed for respiration, causing oxygen deprivation in the body and subsequent dizziness. 3. Excessive fatigue: Soaking in hot springs is a way to relax both mind and body, but staying too long or doing it too frequently may lead to excessive physical fatigue, thus causing dizziness. 4. Underlying medical conditions: If a person already has certain health issues—such as hypoglycemia, low blood pressure, or heart disease—these conditions may worsen during hot spring bathing, potentially triggering dizziness.