Will I get altitude sick on Fuji? Do I need to bring oxygen?

At 3,700m, everyone will feel the effects of altitude, but not everyone will get sick because of it.

The likelihood that you'll get altitude sick on Fuji is increased by these variables: 

  • How much cardio exercise you engage in on a regular basis (involving heavy breathing and sweating for at least an hour at a time)
  • If you live at low elevation (Singapore, Tokyo, Malaysia, Florida)
  • Your personal tendency to become altitude sick previously

If any of the three above points apply to you, then the chances that you'll get altitude sick on Fuji are moderately high. 

The symptoms of altitude sickness include: 

  • Difficulty sleeping
  • Dizziness or light-headedness
  • Fatigue
  • Headache
  • Loss of appetite
  • Nausea or vomiting
  • Increased heart rate
  • Shortness of breath with exertion

It's quite common to display symptoms of Altitude Sickness while climbing on Fuji. As long as the symptoms stay mild they can be managed by:

  • Lowering the amount of physical exertion (taking a break, then taking it slow)
  • Drinking more fluids
  • Eating more food
  • Taking long deep breaths
  • Going back down

We do not recommend the use of oxygen cans. When using an oxygen can, it is difficult to manage the level of oxygen intake, and breathing in too much oxygen can give similar symptoms to those of altitude sickness. 

High altitude increases the risk of heart attack particularly for those with a history of cardiogenic issues. If you have cardio issues, you need to consult your doctor before coming on our trips. 

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