These factors can cause your hair to become dry and brittle.
sun
chlorine
heat
conditioner
drinking plenty of water

Condition of normal breathing called

How do the uv rays cause damage?   what exactly causes the skin to burn;   can you be more specific about this mechanism?   3. how do photosensitive medications increase a person's sensitivity to sunlight and therefore increase their risk of getting burned?     what kind of medications can increase photo-sensitivity, can you think of some examples?

How might expectations or rules at a job differ from those at your home?