My sister has high blood pressure. While lifestyle choices and medication keep her blood pressure in healthy ranges she can't seem to shake the edema. Despite her best efforts, her feet and ankles remain swollen and puffy. While my blood pressure is within healthy range, as soon as the weather gets hot and humid, I'm dealing with swollen feet, too.

Our bodies are designed to move water through our systems. Edema is a condition where excess fluid is retained between cells. There are many reasons you may have edema including immobility, pregnancy, heat/humidity, medications, high blood pressure, trauma, and kidney disease. If you have swollen feet, take heart. There are plenty of things you can do:

• Elevate your legs above heart level. You can use a leg wedge to raise your legs up while sleeping.
• Wear support socks.
  
• Increase your activity -- walking is a perfect exercise for helping edema.
• Avoid standing or sitting in one place for a long time. (If you are sitting for a while, try raising your feet up a bit.)
• Ask your doctor if a short-term course of diuretics would be advisable.
• If you're on high blood pressure medication, talk to your doctor about possibly modifying your medications. (Do not make any changes without speaking to your doctor.)
• Drink plenty of water.

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Mountain hiking plans in your future? Something to be careful of is Acute Mountain Sickness (AMS), otherwise known as altitude sickness. Traveling too high too fast can actually kill you, in rare cases, and more commonly will just make you sick. 20% of people will notice symptoms when hiking in the 6,300-9,700ft range, and above 14,000 most people experience at least minor signs.

AMS is caused by a combination of the lower air pressure and oxygen levels at higher altitudes and can be characterized by fluid collecting around the lungs and the brain. Symptoms often include headache, insomnia, loss of appetite, nausea and vomiting, and dizziness. AMS is best treated by descending to a lower altitude and administering oxygen, and even better yet preventing it from happening altogether by climbing slowly and stopping at the first signs of illness.

Hiking is a great way to get outdoors and get fit, but make sure you're educated on the risks and take care of yourself!

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