Insomnia is a sleeping disorder characterized by the inability to fall asleep or stay asleep. It depends on the quality of sleep and whether you feel refreshed or drowsy on waking up, not on the number of hours you sleep.
People with insomnia may have the following symptoms – finding it hard to sleep, frequently waking up and trouble going back to sleep, waking up to early, being drowsy and tired upon waking, day sleepiness amongst others. It can not only leave you tired or fatigued, but can also make you feel depressed, irritable and anxious. Poor sleep quality can cause tension headaches, affect digestive functions and make it difficult for a person to concentrate and focus on tasks.
A new study, published in the Journal Pain, shows that people suffering from insomnia and other sleep problems have increased sensitivity to pain. The results suggest that psychological factors may contribute to the relationship between sleep problems and pain, but they do not fully explain it.
