Sleep apnea is a chronic medical condition where the affected person repeatedly stops breathing during sleep. These episodes last 10 seconds or more and cause oxygen levels in the blood to drop. It can be caused by obstruction of the upper airway, resulting in obstructive sleep apnea, or by a failure of the brain to initiate a breath, called central sleep apnea.
Although many people with restless legs syndrome (RLS) may never be able to identify a cause to their disorder, often it results from other secondary causes. This results in two categories of the condition, primary RLS (of unknown cause and often familial) and secondary RLS. There are many conditions that may independently lead to symptoms of RLS.
There are few things more frustrating than an inability to sleep. Insomnia may undermine your night's rest, leading to important daytime consequences. Why does insomnia happen? Learn about the factors that may lead to an inability to sleep at night and consider what you might do about these reasons and causes. Discover more in this Verywell article by Dr. Peters.