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Insomnia is one of the most common sleep disorders, with the Centers for Disease Control and Prevention reporting that as many as one in two adults experience short-term bouts, while one in 10 may ...
While sleepiness might be the most obvious outcome, insomnia can cause both short- and long-term health issues. Initially, people with insomnia experience fatigue, low energy, difficulty ...
By this method, body diagrams can be derived by pasting organs into one of the "plain" body images shown below. This method requires a graphics editor that can handle transparent images, in order to avoid white squares around the organs when pasting onto the body image. Pictures of organs are found on the project's main page. These were ...
Insomnia is the most common sleep problem, with many adults reporting occasional insomnia, and 10–15% reporting a chronic condition. [116] Insomnia can have many different causes, including psychological stress, a poor sleep environment, an inconsistent sleep schedule, or excessive mental or physical stimulation in the hours before bedtime ...
A lot of things can cause insomnia, including anxiety, depression, chronic pain, acid reflux, a family history of sleep problems, and stressful life circumstances that make it difficult to unwind.
Central nervous system fatigue, or central fatigue, is a form of fatigue that is associated with changes in the synaptic concentration of neurotransmitters within the central nervous system (CNS; including the brain and spinal cord) which affects exercise performance and muscle function and cannot be explained by peripheral factors that affect muscle function.
"As a general rule of thumb, women can aim to get around 7.5 hours of sleep per night." Studies show that women tend to sleep up to 20 minutes more than men per day.
Insomnia can be grouped into primary and secondary, or comorbid, insomnia. [124] [125] [126] Primary insomnia is a sleep disorder not attributable to a medical, psychiatric, or environmental cause. [127] There are three main types of primary insomnia.