Sudden exposure to temperature changes—especially contact with water—can lead to dizziness, weakness, or even fainting.
In addition, early morning temperatures are usually lower. The contrast between a warm body and cold water can cause blood vessels to constrict, making proper circulation more difficult. In older adults, this reaction can trigger a sudden drop in blood pressure, increasing the risk of losing balance. At this age, a fall in the bathroom is not a minor event and can have serious consequences.
The Importance of Water Temperature
Timing isn’t the only factor—water temperature also matters. Both very cold and excessively hot water can pose risks. Extreme cold forces the body to react abruptly, while intense heat causes rapid dilation of blood vessels, which may lead to a sudden drop in blood pressure.
This effect is especially delicate for people with a history of high blood pressure, heart conditions, or circulatory fragility—situations that are common after age 70.