Excessive daytime sleepiness is one of the most common sleep-related patient symptoms, and it affects an estimated 20 percent of the population. Persons with excessive daytime sleepiness are at risk of motor vehicle and work-related incidents, and have poorer health than comparable adults. The most common causes of excessive daytime sleepiness are sleep deprivation, obstructive sleep apnea, and sedating medications. Other potential causes of excessive daytime sleepiness include certain medical and psychiatric conditions and sleep disorders, such as narcolepsy.
Some diseases are also associated with changes in the nails, which can include brittleness. Thin and brittle nails can be a sign of hypothyroidism, for example. The term onychoschizia refers to splitting of the fingernails as well as brittle or soft nails. Taking biotin (a vitamin) supplements can help in some cases of brittle nails, and application of moisturizers after soaking in water can also be of benefit. Medically Reviewed by a Doctor on 3/30/2015.
Ironically, some nail care products, such as nail polish or nail polish remover, can damage nails and make them brittle. Acrylic nails and tips are particularly likely to promote breaking and peeling. Using a moisturizer and avoiding exposure to chemicals can help restore your nail health.ronically, some nail care products, such as nail polish or nail polish remover, can damage nails and make them brittle. Acrylic nails and tips are particularly likely to promote breaking and peeling. Using a moisturizer and avoiding exposure to chemicals can help restore your nail health.