For many people, showering is one of the most relaxing moments of the day. However, what few realize is that certain seemingly harmless habits in the bathroom can become a silent trigger for serious cardiovascular problems, especially after age 60.

Sudden dizziness, falls, spikes in blood pressure, and decreased blood flow to the brain can begin with something as simple as a poorly taken shower. The risk isn’t in the water itself, but in how, when, and for how long we use it.

1. The Danger of Excessively Hot Water

Very hot water causes a sudden dilation of the blood vessels in the skin. This causes blood to redistribute rapidly and blood pressure to drop sharply.

In older adults or those taking blood pressure medication, this drop can cause:

Dizziness

Leg weakness

Blurred vision

Fainting

Fainting in the bathroom almost always ends in a fall, and a fall can lead to head injuries, brain hemorrhages, or fractures.

What to Do

The safest temperature for the body is lukewarm, close to body temperature, between 36 and 38 °C (97 and 100.4 °F).

If the water burns when you touch it with the back of your hand, it’s too hot.

2. Showering Right After Eating

After a meal, much of the blood is directed to the digestive system. If you then take a hot shower, the heat also draws blood to the skin. The result is internal competition for blood flow.

This can cause a dangerous drop in blood pressure, leading to dizziness and fainting.

The Recommended Approach

Wait at least 60 to 90 minutes after a large meal before showering.