Drink water
Eat salty foods
Eat smaller, more frequent meals
Avoid alcohol
Stand up slowly
Wear compression stockings
Cross your legs while sitting
Lie down and raise your legs
Increase caffeine intake if safe for you
Review medications with a doctor
Treat dehydration
Treat underlying medical conditions
Increase overall calorie intake if undernourished
Get up and move regularly
Avoid very hot showers or baths