The human body also produces cannabinoids, known as endocannabinoids, in a bodily system known as the endocannabinoid system (or ECS). The ECS promotes homeostasis by regulating a wide range of functions, including motor skills, mood, appetite, and sleep. As we age, our ECS produces fewer endocannabinoids; they may also decrease due to physical injury or disease. Replenishing depleted endocannabinoids with phytocannabinoids like CBD can help restore balance to the body.
CBD has been shown to help those with asthma as well as sleep apnea. If you struggle with either of these problems, or simply can’t seem to breathe soundly, regularly, and fully throughout the night, cannabidiol is a proven remedy. Some preclinical studies have shown that CBD helped over three-fourths of participants in a trial of CBD for breathing during sleep, largely due to the ability of cannabidiol to affect levels of serotonin in the brain. CBD is also able to reduce headaches and mood problems, which can also interfere with good breathing.
Cannabinoids affect the transmission of pain signals from the affected region to the brain (ascending) and from the brain to the affected region (descending). A 2011 study showed that CBD and CBC stimulated descending pain-blocking pathways in the nervous system and caused analgesia by interacting with several target proteins involved in nociceptive control. Authors concluded that the cannabinoids “might represent useful therapeutic agents with multiple mechanisms of action.”  The following year, researchers reported that CBD significantly suppressed chronic inflammatory and neuropathic pain without causing apparent analgesic tolerance in animals.  And then in 2013, researchers concluded that chronic pain patients prescribed hydrocodone were less likely to take the painkiller if they used cannabis. 
When Jillian came home for Christmas she and my husband, decided it was time for me to make a decision to do something. I wasn’t ready to decide anything just yet. I wanted to have Christmas with my family. The day after Christmas I made up my mind to drive out to California to investigate cannabis oil as a treatment. We read articles about successful brain tumor results in Spain and Amsterdam and gathered information wherever we could. We decided to give the cannabis oil a try, especially after we read a paper on a study about the chemotherapy my doctor had recommended. That study suggested patients with tumors like mine appeared to get better at first with the chemo but then the left over tumor cells would mutate and turn aggressive over time.
I just started taking CBD oil , I am on my 2nd Hip replacement surgery due to device failures looking at a 3rd surgery. Has you can imagine the pain, stress and anxiety levels are off the charts. Especially at an otherwise healthy 54 yr women. So i understand from reading posts its best to take it under the tongue. I am taking 1-2 ml a day. I can tell some difference,is your recommended dosage. I am using for pain , stress and sleep. I appreciate your feedback.