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.
Lavender (Lavandula angustifolia) is a handy plant to have around both for you and your garden. Its essential oil can be used to repel many problem insects -- such as mosquitoes, fleas and moths -- from humans, animals and even other plants. Lavender can act as a protector for other plants that lack natural abilities to ward off unwanted insects.