For some people, higher elevations come with unexpected health symptoms. If you’ve recently traveled to a mountainous area and suddenly feel dizzy, unusually tired, or short of breath, altitude sickness could be the cause. Altitude sickness occurs when the body struggles to adjust to lower oxygen levels at higher elevations. While symptoms can range from mild to severe, sudden dizziness and fatigue are among the most common early warning signs. These symptoms often develop within hours of arriving at a higher altitude and can affect even healthy individuals. Understanding why altitude sickness occurs and recognizing its symptoms can help you know when medical attention may be needed.
For same-day altitude sickness treatment, visit the walk-in clinic at AFC Urgent Care Denver University Hills. Our medical team is available 7 days a week to treat all patients in the Denver, CO area. Just walk-in or plan your visit in advance below!
Why Does Altitude Sickness Cause Dizziness and Fatigue?
As elevation increases, air pressure decreases, which means there is less oxygen available with each breath. Although the percentage of oxygen in the air remains the same, your body receives less oxygen than it is accustomed to at lower elevations. When this happens, your body must work harder to deliver oxygen to your tissues and organs. This adjustment period can trigger a variety of symptoms, particularly if you ascend too quickly. Dizziness often occurs because the brain is receiving less oxygen than normal. At the same time, the body’s increased effort to compensate can leave you feeling physically and mentally exhausted.
Many people describe altitude sickness fatigue as being much more intense than ordinary tiredness. Even simple activities such as walking, climbing stairs, or carrying luggage may feel unusually difficult.
What Other Symptoms Can Altitude Sickness Cause?
Dizziness and fatigue are common, but they are rarely the only symptom of altitude sickness. Most people experience a combination of symptoms that develop within 6 to 24 hours of reaching a higher elevation. Common symptoms include:
● Headache
● Fatigue or weakness
● Dizziness or lightheadedness
● Shortness of breath
● Nausea and loss of appetite
● Difficulty sleeping
● Increased heart rate
Symptoms often become more noticeable during physical activity, as the body requires even more oxygen during exertion. In mild cases, symptoms may improve as the body acclimates over a day or two. However, worsening symptoms should never be ignored.
Who is Most Likely To Develop Altitude Sickness?
Altitude sickness can affect anyone, regardless of age or fitness level. Many people assume that being physically fit prevents altitude sickness, but even experienced athletes can develop symptoms. Your risk is generally higher if you:
● Travel quickly to a high elevation
● Fly directly to a mountain destination
● Participate in strenuous activity shortly after travel
● Have previously experienced altitude sickness
● Ascend to elevation above 8,000 feet
The speed of ascent is often one of the most important factors. The less time your body has to adapt, the greater your likelihood of developing symptoms. Travelers visiting mountain destinations like Denver should be aware of the signs.
What To Do If You Think You Have Altitude Sickness
If you begin experiencing symptoms after arriving at a higher elevation, the first step is to slow down and allow your body time to acclimate. Helpful measures may include:
● Resting and avoiding strenuous activity
● Drinking plenty of fluids and avoiding alcohol
● Eating light, bland meals
● Allowing time for gradual acclimatization
Many mild cases improve within 24 to 48 hours as the body adjusts. However, if symptoms worsen or fail to improve, medical evaluation is recommended. In some cases, descending to a lower elevation may be necessary to relieve symptoms.
Visit AFC Urgent Care Denver University Hills For Walk-In Altitude Sickness Treatment in Denver, CO
Yes, altitude sickness can cause sudden dizziness and fatigue. These symptoms occur because the body is adjusting to lower oxygen levels at higher elevations and are often among the earliest signs of altitude illness. While mild symptoms frequently improve with rest and hydration, persistent or worsening symptoms should not be ignored. If you’ve recently traveled to Denver and are experiencing symptoms, visit our walk-in clinic for a same-day elevation. The medical team at AFC Urgent Care Denver University Hills can help determine whether altitude sickness or another condition may be causing your symptoms and provide the best treatment. We accept most health insurance plans and offer cost-effective options for self-paying patients. If you have any additional questions about altitude sickness treatment, or the other services we provide, please call us directly at (303) 756-4500.
