Many people are familiar with altitude sickness and the effect it has on the body, but many people often fail to realize that there is a severe form of altitude sickness that even people living at ...

If you’re planning a getaway at one of these popular high-altitude destinations—from Banff to the Colorado Rocky Mountains—try acclimating in any of these “intermediate altitude” cities first.

Take it slow when going to higher altitudes to prevent altitude sickness, which can become life-threatening when severe.