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.
I love fragrances, and one of my favorite is the **Air Wick Scented Oil Relaxation Lavender & Chamomile Refills** for my Air Wick wall plugs. A combination of lavender and chamomile, both herbs thought to reduce stress, in a pretty purple liquid is great for our home, since we are constantly stressed from our jobs.