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Insomnia is a sleep problem that can cause difficulty falling asleep, staying asleep, or not feeling rested after waking up. Insomnia is not about the number of hours of sleep a person gets. Everyone’s sleep needs are different. However, your need for sleep doesn't decline as you get older. Most adults need 7 or 8 hours of sleep each night to feel rested.
A variety of conditions can cause insomnia. Physical causes include bladder, prostate, or cardiovascular problems, joint pain, and conditions such as sleep apnea, epilepsy, and dementia. Mental causes include stress, anxiety, or depression. Certain medications and substances can also cause insomnia such as caffeine, alcohol, nicotine, and some antidepressants.
There are drugs that may help with insomnia but they should only be tried after consulting with your doctor and trying some of the natural techniques listed above. You should always discuss the potential risks and benefits of sleep medications with your doctor—using sleep medications for extended periods can cause you to become dependent upon them for sleep.