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.
Inpatient hospital, skilled nursing facility, and intermediate care facility services for patients in institutions for mental disease who are: 1  Under 21 years of age. 2  Under 22 years of age and was getting services when you turned 21 years of age. 3  65 years of age or older.