But one of the awesome powers of the human brain is its adaptability. “It can learn and reorganize itself every time you practice something new,” Kilgard says. His research, including a study published in February 2014 in the journal Neuromodulation, has shown this adaptability may be key to helping the brain “turn down” the hyperactivity that can lead to tinnitus, he says. (4)
Although mitochondrial DNA variants are thought to predispose to hearing loss, a study of polish individuals by Lechowicz et al, reported that "there are no statistically significant differences in the prevalence of tinnitus and its characteristic features between HL patients with known HL mtDNA variants and the general Polish population." This would argue against mitochondrial DNA variants as a cause of tinnitus, but the situation might be different in other ethnic groups.
Subjective tinnitus is the most common type and accounts for 95 percent of cases. Only you can hear it and it’s usually caused by exposure to excessive noise. It can appear suddenly and may last three months (acute) to 12 months (subacute), or longer. Subjective tinnitus is often accompanied by hearing loss due to hair cell nerve damage. The severity of symptoms varies from patient to patient, and largely depends on your reaction to the noise.
Diseases, illnesses and injuries. There are several medical conditions that can cause tinnitus. These include Meniere’s disease, temporomandibular joint disorders (TMJ), head or neck injuries, brain tumors, etc. Most people don’t know if they have Meniere’s disease until properly diagnosed. This RARE disease brings on dizziness, tinnitus and ear pressure that can last for a short period of time and then disappears. TMJ causes pain in your jaw muscles. With TMJ, you’ll often hear a clicking noise when chewing. TMJ has shown to influence your chances of developing tinnitus, so be sure to treat the condition in order to reduce your chances of getting tinnitus. Head and neck injuries have also been shown to cause tinnitus, so always wear your helmet when you’re out biking and drive safely when you’re in your car.Believe it or not, but tinnitus can be caused by something as simple as an ear infection. Don’t take ear infections lightly they can be devastating at any age. Brain tumors, while equally as rare as Meniere’s disease, can also generate tinnitus symptoms. While you can alleviate your tinnitus immediately with an over the counter tinnitus treatment, you should also seek the help of a tinnitus specialist in your area to determine what the underlying cause of your tinnitus is.
Additional conditions that can cause pulsatile tinnitus include arterial bruit, abnormal passages or connections between the blood vessels of the outermost layer of the membrane (dura) that covers the brain and spinal cord (dural arteriovenous shunts), or conditions that cause increased pressure within the skull such as idiopathic intracranial hypertension (pseudotumor cerebri). Sigmoid sinus dehiscence may be associated with pseudotumor, but this connection has not been firmly established. It possible that cases of pulsatile tinnitus associated with pseudotumor may be caused by an undiagnosed SSWA. Head trauma, surgery, middle ear conductive hearing loss, and certain tumors can also cause pulsatile tinnitus. Obstructions within in the vessels that connect the heart and brain can also cause pulsatile tinnitus.
Glenn Schweitzer is an entrepreneur, blogger, and the author of Rewiring Tinnitus and Mind over Meniere’s. He is passionate about helping others who suffer from tinnitus and vestibular disorders and volunteers as an Ambassador Board Member for the Vestibular Disorders Association (VEDA). Through his blogs, he continues raise awareness for tinnitus, Meniere’s disease, and other vestibular disorders, spreading his message of hope to those in need.
Millions of Americans experience tinnitus, often to a debilitating degree, making it one of the most common health conditions in the country. The U.S. Centers for Disease Control estimates that nearly 15% of the general public — over 50 million Americans — experience some form of tinnitus. Roughly 20 million people struggle with burdensome chronic tinnitus, while 2 million have extreme and debilitating cases.1