Lack of education about risks
Inspect your home
Be very careful with space heaters.
Check your appliances.
Check the air conditioning and heating unit in your home.
Check the natural gas/LP gas system in your home.
you did not say any option
Because it can cause disabilities <span />
Radiation therapy and surgery
If by inside, you mean staying indoors, then this is false. The average hours of sleep that people should get is between 7-8 hours. That would be 7/24 * 100 = about 30%. People must at least stay inside to sleep.
I hope I was able to answer your question. Have a good day.