Your nails might seem like a purely cosmetic detail, but doctors often see them as tiny windows into your overall health.

People were classed as high risk if they scored 2 or more based on factors such as snoring, daytime sleepiness, someone witnessing pauses in breathing during sleep, or having high blood pressure.

Other symptoms include nausea, dizziness, or a fluttering feeling in the chest called palpitations. These signs are also more ...