Substance Abuse and Mental Health Services Administration claimed that more than 40 million of Americans suffer from mental health issues. Millenials, in particular, experience a high level of anxiety, with risks including depression and suicide. In fact, the pressure is heightened in this generation because they don't have the perseverance attitude to deal with problems, and yet, they are taught to be highly competitive.

To dig deep into the minds of millenials, a survey managed to find out what's actually bothering them the most

- Millenials are worried about money

British millenials reportedly suffer from poor mental health. The research found that more than 50 percent of UK millenials said that money caused the most anxiety as they have a serious concern about their jobs. Forbes has noted that depression at workplace affected the 20 percent of millenials - a relatively high rate when compared to other generations.

Millenials concern about the cloudy prospects in getting the right jobs and this has made them feel more pessimistic. In Australia, only 1 out of 10 young individuals is confident that they will be more financially stable than their parents.

- Millenials are worried about terrorism and conflict

Interestingly, this generation is the most educated group of all, according to Lifezette. Hence, it makes sense if they have more concerns and different perspectives towards what's going on in the world.

A survey conducted by Varkey Foundation across the world, asking opinions on 20,000 teenagers (aged 15-20) has found that the respondents are facing common fears such as terrorism attacks. Chinese teens, however, think that climate change is more worrying than terrorism.