OSHA (one part of a Personal Fall Arrest System) requires workers to wear a full-body harness, when they are working on a suspended scaffold more than 10 feet above the working surface, or when they are working in bucket truck or aerial lift.
Studies show that our bone density decreases after the age of 301; meaning you can have frail bones without knowing. That's why a bone density scan is so important. Unfortunately, most people only find out they have bone density issues after suffering from a broken bone.