Nearly 70 plus percent of full-time firefighters in the u.s. war 24 hours and shout out to firefighters oh yeah that's a tough job that's very tough so actually in our lab when we did the study our study coordinator and staff scientist was leading the study immediately manunu gian was awesome see did this beautiful study but just she wanted to be in the literally to be inThe Firefighters' shoes for one day because they also in san diego the shift goes from eight a.m. to 8 a.m., you have to report around, then it's reported in thirty a.m.-8 p.m. The next morning after eight o'clock