Relaxers work by using these powerful chemicals to penetrate the cortex and break the disulfide bonds, thus straightening the hair. Once these bonds have been broken, the process is irreversible and the hair will be straight until it grows out or is cut.air relaxers have come a long way since first being debuted in Garrett Morgan's sewing repair shop. When it comes to straightening hair, there are a ton of options on the market.
What are the different types of nurses? As we mentioned, there are three primary categories of nursing. Each level has its own requirements and responsibilities. For example, non-degree nurses like CNAs and LPNs usually perform health assistant duties and are often needed in home health care and assisted-living settings.
All care should be delivered by Registered Nurses (RNs) such as is the case at Hahnemann Hospital in Philadelphia. 1  The nursing model should be a primary care nursing model, not a team model. 2  Magnet hospitals should have at least one-year nursing residencies for all new nursing graduates.