Iâm pregnant and have had a blood test for chickenpox. The blood test can show that you: 1  Are immune (have already had varicella disease or varicella vaccine) and have no sign of recent infection. You have nothing further to be concerned about.  Are not immune and have not yet been infected.
Causes of acute insomnia can include: 1  Significant life stress (job loss or change, death of a loved one, divorce, moving) 2  Illness. 3  Emotional or physical discomfort.  Environmental factors like noise, light, or extreme temperatures (hot or cold) that interfere with sleep.
A variety of sleep disorders can be responsible for insomnia; these include sleep-related breathing disorders, such as obstructive sleep apnea syndrome. Alcohol increases the severity of the syndrome, and may cause snoring and induce apneas in individuals without a history of obstructive sleep apnea syndrome.