Altitude, Earthquakes, Water, and Pharmacies: CDMX Body Basics

Altitude: the first 48 hours

Mexico City sits at about 2,240 meters (7,350 feet). Most visitors feel it as mild fatigue, a headache, or getting winded on stairs during the first day or two. Drink more water than usual, go easy on alcohol the first night, and do not schedule your most ambitious walking day for the day you land.

The seismic alert

Mexico City has an earthquake early-warning culture: public speakers and official systems may sound an unmistakable alert before strong shaking. If you hear it, stay calm, do not use the elevator, follow the building route if you can evacuate safely, or move away from windows, mirrors, and heavy objects. The city also runs announced drills, so context matters.

Water and stomachs

Drink bottled or filtered water. The Roma Set homes have a small filtered tap at the kitchen sink for exactly this. Brushing teeth with tap water is a personal-call gray zone many visitors handle fine, but drinking glasses should come from the filtered kitchen tap, not from unfiltered taps. Ease into street food over the first days rather than starting with the most adventurous stand.

Pharmacies and getting help

Pharmacies are everywhere, well stocked, and many run late. Major chains often have an adjacent walk-in doctor office for minor issues like stomach trouble, colds, or a simple prescription question. For anything serious, contact your host and use a hospital or emergency service; travel insurance is worth having.