which disease may be caused by an unhealthy lifestyle?\nosteoporosis\nsickle cell disease\nhuntington’s…

Brief Explanations:

Osteoporosis can be caused by factors like lack of calcium - rich diet, insufficient physical activity and excessive alcohol or tobacco use which are part of an unhealthy lifestyle. Sickle cell disease and Huntington's disease are genetic disorders. Lupus is an autoimmune disease with complex causes not directly related to lifestyle in the same way as osteoporosis.

Answer:

osteoporosis