Though more common among children, nightmares and bad dreams happen throughout life. But is there anything we can do to prevent the bad things from creeping into our sleep?

1. Anxiety and Stress
Anxiety and stress, often as the result of a traumatic life event, are sometimes the cause of nightmares and bad dreams. a major surgery or illness, grieving over the loss of a loved one, and suffering or witnessing an assault or major accident can trigger bad dreams and nightmares. Post-traumatic stress disorder (PTSD) is also a common cause of recurrent nightmares.

2. Spicy Foods
When and what we eat may affect our nighttime rest. Spicy food can elevate body temperatures and thus disrupt sleep. Eating close to bedtime increases metabolism and brain activity and may prompt bad dreams or nightmares.

3. Fat Content of Food
Some research has indicated that the more high-fat food you consume during the day, the greater the chance that the amount and quality of your sleep may suffer. A small study published in 2007 in Psychological Reports found that the dreams of people who ate a high amount of organic food differed from those who ate “junk foods.”

4. Alcohol
Though alcohol is a depressant that will help you fall asleep in the short term, once its effects wear off, it can cause you to wake up prematurely. Excess consumption can also lead to nightmares and bad sleep.

5. Drugs
Some drugs, including antidepressants, barbiturates, and narcotics, can cause nightmares as a side effect.

6. Illness
Illnesses that include fever, such as the flu, can often trigger nightmares. And other sleeping disorders, including apnea and narcolepsy, may also increase the incidence of bad dreams and nightmares.