I could answer this but you don't have any examples here lol
It can compromise oxygen and nutrient delivery to muscles which can cause cramps.
You should change your workout between 4-6 weeks because a workout works with your muscles to losen them once you have gotten your results in about 4-6 weeks you’ll be doing the same workout for nothing you can change your workout by doing things for your core or legs or by doing different workouts for the part of your body your working out.
From Wikipedia:
"The Joint Commission is a United States-based nonprofit tax-exempt 501 organization that accredits more than 22,000 US health care organizations and programs. The international branch accredits medical services from around the world."