These are some of the body's first reactions to the altitude and are normal, helpful responses. You may also experience a touch of nausea, a headache or feel tired. About 15% of all vacationers have such symptoms. These symptoms usually disappear 24 to 36 hours after arrival.

If these symptoms persist or grow worse, or if you are worried, please seek medical attention.

Sun and Temperature

The sun has more power in this thin air and a bad sunburn can spoil your stay. Always use a strong sunscreen. In winter snowblindness from snow glare and ultraviolet rays is a hazard, so wear UV-blocking sunglasses and/or goggles, even on cloudy days.

The mountains get very chilly at night, so take warm clothing if you might be caught out after sunset. Even in the Town of Taos it is not unusual to have a 30° to 40° difference in daytime high temperatures and nighttime lows. Hypothermia - low body temperature - can occur in summer or winter if you are wet or even chilled by a light breeze. It can also occur when you are tired and have not eaten properly. Clumsiness, trouble thinking or speaking clearly and overwhelming tiredness are warning signs. Keep an eye on your companions. If these warning signs appear, stop your activity, warm up, eat, take a hot drink and, if necessary, call for help immediately.

Humidity

The crisp, dry air is exhilarating, but you will lose body moisture from perspiration and deeper breathing often without even noticing it! It is important to maintain your body's water level, so drink more water or juice than you usually would. Note: coffee, tea, caffeinated sodas and alcohol will not help your body retain good hydration. These beverages may exacerbate high altitude symptoms, too.

The dryness can also affect contact-lens wearers. Lens wearers may need to moisturize their eyes more frequently. Extended-wear contact lenses may need to be removed on a daily basis to let the eye take in more oxygen.