Search results
Results From The WOW.Com Content Network
Surveys show that 40 to 70 percent of those 65 years old and older suffer from chronic sleep disturbances. [2] The elderly tend to go to bed early in the evening and wake earlier in the morning than younger adults. Furthermore, the elderly often wake several times throughout the night and have difficulty falling asleep.
You can keep your eyes healthy as you get older by wearing sunglasses and hats to protect from UV rays, getting enough sleep and exercise, and eating a balanced diet, per the N IH. If you spend a ...
In humans, eye color is a highly sexually dimorphic trait. [18] Several studies have shown that men are more likely to have blue eyes than women, while women are more likely to have darker eye colors (green and brown eyes) than men. [18] [19] Sex is therefore a major factor in the expression of eye color genotypes. [18]
People with lighter eyes also consume significantly more alcohol, as darker eyed people require less alcohol to become intoxicated. The reason boils down to genes.
More melanin means darker eyes, hair or skin. The color of the melanin in the eyes is determined by three other genes, EYCL1, 2 and 3. Together, they account for brown, green and blue, but not ...
Color vision signals travel through the parvocellular layers of the lateral geniculate nucleus (LGN), later transmitting down the color regions of the ventral visual pathway. [6] Due to cone photoreceptor damage located in the macula, there is a significant reduction of visual input to the visual association cortex, stirring endogenous ...
The symptoms usually begin between the ages of 30 and 70 years old and appear to be more common in women than in men (2:1 ratio). The combination of upper and lower dystonia is sometimes called cranial-cervical dystonia. [2] The incidence is about one case in 20,000 people. [3]
For premium support please call: 800-290-4726 more ways to reach us