CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY CORDELIA MOLLOY / SCIENCE PHOTO LIBRARY
Sleeping pills. Collection of sleeping pills, in this case zimovane or zopiclone. Sleeping pills are prescribed to treat insomnia, a patient's inability to fall asleep, or sleep long enough. Insomnia has many possible causes, including environmental factors such as noise and light, too much caffeine, lack of exercise, anxiety, depression and various psychiatric illnesses. Sleeping drugs promote sleep by reducing the activity of nerve cells within the brain. Long- term use of sleeping pills can lead to tolerance and dependence.
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