This page is about any physical ailments you may have that would hamper your ability to hike and work in whatever climate you are planning on spending time in.
Do you have asthma? Do you have a limp? Poor circulation? Bronchitis? Allergies? Basically, is there any aspect of your physiology that would prevent you going where you need to go, and doing what you want to do?
If so, then take those things into account before heading out into unfriendly terrain.
Again, BE HONEST! It could save your life.