How to Bathe More Safely

 Keep water warm rather than extremely hot—ideally around 98–102°F (37–39°C)
 Test the water using your elbow or forearm, which are more temperature-sensitive than your hands
 Install an anti-scald valve to limit maximum water temperature
 Sit down immediately if you begin to feel lightheaded; a shower chair or stool may improve safety

 2. Sudden Temperature Swings (Cold-to-Hot or Ice-Cold Water)

What Happens

Rapidly switching between hot and cold water forces the cardiovascular system to adjust quickly.

• Cold water constricts blood vessels and may raise blood pressure
• Hot water dilates blood vessels and may lower blood pressure

These rapid shifts can place extra strain on the heart and circulation.

Who May Be Most Vulnerable

People with the following conditions may be more sensitive to sudden temperature changes:

• High blood pressure
• Heart rhythm disorders (arrhythmias)
• A previous stroke
• A history of heart attack

How to Bathe More Safely