I'm going to refer back to my last question today. Doesn't it feel different when you live in high-altitude cities like Denver or Calgary, Canada compared to low-lying areas like Louisiana (which is below sea level.

The thin air could feel odd when you go to mountainous areas.

Having spent several hours in both Denver and Salt Lake City, I noticed no difference. Some people, though, may be super sensitive to the difference in air pressure and less oxygen, but most people are not affected below 7,000 or 8,000 feet.

People are amazingly resistant and adjustable. I was most uncomfortable in the high heat and humidity of Ho Chi Minh City, Vietnam. But the people who live there seem to prefer this to air conditioning.

* amazingly resilient and adaptable . . .

Yes, living in high-altitude cities like Denver or Calgary can indeed feel different compared to low-lying areas like Louisiana. The primary reason for this difference is the change in atmospheric pressure and oxygen levels at higher altitudes.

To understand why the thin air at high altitudes can feel odd, we need to first consider how the atmosphere is structured. The Earth's atmosphere is composed of different layers, and each layer has its own characteristics. The layer closest to the Earth's surface is called the troposphere, where we live and breathe. As you go higher in the troposphere, the air pressure decreases, which means there are fewer air molecules per unit of volume.

At sea level, the atmospheric pressure is higher, and there is a higher concentration of oxygen molecules available for breathing. This makes it easier for our bodies to take in oxygen, which is essential for various bodily functions. However, as you move to higher altitudes, the atmospheric pressure decreases, causing the air to become "thinner." With thinner air, there are fewer molecules of oxygen available per breath, making it more difficult for our bodies to take in the same amount of oxygen we're accustomed to at lower elevations.

The decrease in oxygen can lead to several physiological effects, commonly known as altitude sickness or acute mountain sickness (AMS). Some common symptoms of AMS include shortness of breath, fatigue, headache, dizziness, and nausea. These symptoms can vary in intensity and duration depending on factors such as the altitude of the location, the individual's physical condition, and the rate of ascent.

To help alleviate the symptoms and adjust to living in high-altitude areas, it is recommended to take certain precautions. Here are a few tips:

1. Gradual ascent: If possible, gradually acclimate to higher altitudes by ascending slowly over a few days rather than quickly moving from a low-lying area to a high-altitude location.

2. Stay hydrated: Drinking plenty of fluids helps combat the effects of dehydration, which can worsen altitude sickness symptoms. Avoid excessive alcohol and caffeine consumption, as they can contribute to dehydration.

3. Take it easy: Allow your body time to adapt to the altitude. Avoid overexertion and rest as needed, especially during the first few days at higher elevations.

4. Consider medication: There are medications available (such as acetazolamide) that can help prevent or relieve altitude sickness symptoms. Consult with a healthcare professional before taking any medication.

It's important to note that not everyone experiences altitude sickness, and some individuals adapt more easily to higher altitudes than others. However, it's always wise to be aware of the potential effects and take necessary precautions when traveling or living in high-altitude areas.