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.
Why is the smell of lavender linked with relaxation and sleep? Lavender (Lavandula angustifolia, sometimes known as Lavandula officinalis) is widely appreciated for its fragrance and therefore used in perfumes, soaps, shampoos, lotions and sachets for scenting clothes. The lavender plant thrives in sunny and stony environments and was originally found in Mediterranean Europe.