You wake up all sweaty. It’s uncomfortable, but is that a problem? Sometimes night sweating is a side effect of a thermostat that is too high, wearing heavy pajamas, or using extra blankets. Sometimes, however, it is a sign of a bigger problem. If night sweats become common, they can be caused by a major disease.

1. Obstructive sleep apnea:

People with obstructive sleep apnea do not sleep well at night. Their airways are blocked during sleep, limiting airflow. People with obstructive sleep apnoea often experience excessive night sweats as a side effect. Other common side effects include loud snoring, headaches and capriciousness. If you experience some of these symptoms, consult a doctor in addition to night sweats. Obstructive sleep apnoea should be diagnosed and treated before it causes heart problems or diabetes. Doctors can diagnose sleep apnoea.

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