Results show that participants with severe, untreated sleep apnea had a significant reduction in white matter fiber integrity in multiple brain areas. This brain damage was accompanied by impairments to cognition, mood and daytime alertness.
An iron deficiency can cause the nail bed to be thin and concave and have raised ridges. While most of Fox's patients don't come in to report nail problems, he routinely checks patients to make sure they have healthy fingernails. The nails offer many little clues to what's going on inside you.
Onycholysis, which occurs when the nail plate is separated from the nail bed, results in white discoloration of the affected area. It can be caused by any local problem, such as periungual warts or onychomycosis, that separates the nail plate from the bed, although the most common reason for this separation is trauma.