Speech-language pathologists can earn the Certificate of Clinical Competence in Speech-Language Pathology (CCC-SLP), offered by the American Speech-Language-Hearing Association. Certification satisfies some or all of the requirements for state licensure and may be required by some employers.
The effect of lavender on sleep has also been studied. The inhaling of lavender odour during sleep has been observed to reduce the respiration frequency (you breathe in and out less), which is commonly used as an indicator of relaxation and sleep depth.
The researchers believe the lavender may work by reducing contractions in the uterus. These contractions are caused by prostaglandins in the uterine lining. The prostaglandins are also responsible for nausea and diarrhea some women experience during menstrual cycles.