 4. Low level of physical activity. Participants will meet the criterion for physical inactivity if, in the last two weeks they did not perform a planned physical activity at least twice a week lasting more than 30 minutes or, if they did not perform planned or unplanned walks lasting for more than 15 minutes at least twice a week or, if they had performed any moderate or vigorous housework activity 2,5 METS such as: wash or mop the floor, vacuuming, washing windows or wash the car frequently at least 1x a week for 30 minutes. 