Sleep monitoring

If you don’t know what sleep apnea is or whether smart watch sleep monitoring is reliable, then I suggest you spend three to five minutes reading the following.What is sleep apnea syndrome？  Sleep apnea hypopnea syndrome is a disease of apnea and hypopnea caused by upper airway collapse and obstruction during sleep. The clinical manifestations include night sleep snoring, accompanied by apnea, daytime sleepiness,...