Donuts, streetlights, pills, the Internet, cigarettes and cosmetic surgery are all everyday sparks that can cause depression, the Daily Mail reported.

Although money and relationship matters are well-known causes of depression, experts revealed that our everyday activity ranging from eating behavior to exposure to the sun can also trigger depression.

First, comfort foods such as donuts can lead to low mood due to sugar crash. With the sudden increase in sugar level comes a sudden fall in dopamine level, which is linked to sadness.

Too much light is yet another unexpected depression trigger. Scientists at Ohio State University revealed that street lights, night light and even glow of a TV screen shining the bedroom can have a negative impact on the brain.

Next, a study from Monash University, Australia in 2005 revealed women taking birth control pills can be twice as likely to feel depressed than those who do not.

People who make excessive use of the Internet, according to a study in China of 1,000 teenagers in 2010, increase their likelihood of developing depression by 2.5 times.

Not surprisingly, smoking is found to increase the risk of severe depression by 93 percent, according to research from the University of Melbourne.

Lastly, cosmetic surgery can cause depression as people who underwent plastic surgery may not like the results or struggle to accept their new look, said Dr. Mark Vanderpump. The journal Current Psychiatry Reports revealed that women with experiences of cosmetic surgery are three times suicidal.

The entire list of depression triggers also includes tea, coffee, hot weather, procrastination, overactive thyroid, vegetarian and Atkins diet.

By Jung Eun-jung

(kristin2j@gmail.com)

Intern reporter