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.
If you need to shower sooner, it’s best to do so partially with lukewarm water.
3. Sudden Changes from Hot to Cold
Going from a hot shower to a cold environment causes a sudden constriction of the blood vessels. This leads to a sudden increase in blood pressure.
