When a person has too much iron in his or her body, they have a disease called haemochromatosis. Haemochromatosis can be inherited if a person's body just does not handle iron properly. Could haemochromatosis also be caused by someone's environment?

Yes

Explanation:

The person who has the ability to absorb too much iron in the body suffers by the medical condition known as haemochromatosis.

Yes, this condition is also affected by the the environmental conditions such as lifestyles, amount of iron in the diet, use of alcohol and infections.

It also depends on the age of the person. It is affected by both the genetic factors and environmental factors.