A19th-century explorer crossing a desert has run out of water. he has the best chance of surviving if he can find

Trees or dig a whole deep enough and it will fill with water

People need to distract themselves with actitives. they can also find a natural high. an example would be eating alot of meat. that meat can release dopamine to the brain which gives one a natural high feeling.

Nail fungus, which can cause the nails to crack, peel and change color and texture.