Drink more water
Increase salt intake only if your doctor says it is safe
Eat small, frequent meals
Avoid standing up too quickly
Wear compression stockings
Limit alcohol
Review medications with a doctor
Treat dehydration
Treat anemia
Treat thyroid problems
Treat adrenal problems
Improve overall calorie intake if underweight
Reduce prolonged heat exposure
Avoid sudden heavy exertion
Get enough sleep
Seek medical care if symptoms are severe or persistent