THE BRAIN WORKS TOO MUCH!
The problem is that the brain works 24 hours a day without any rest! Yes, we think even while sleeping. Meditation can help us to calm the mind to think with more clarity.
This hyperactive mind that we have needs a rest from time to time. There are many things to be worry about nowadays: Crime, drugs, economy, natural disasters, wars (Specially the tension between USA and North Korea), etc. Some people now are getting afraid of prophecies and the famous End of the World, but I actually think that will never happen as people think and not so soon. Remember to live the present, so do not worry about the future; it is not here. Enjoy life and if it ever comes then do something when it comes.
The brain is always trying to figure out what the future will bring, but it only can guess, it does not know for sure how the future will be. This is a bad mental habit that we all have. When the brain comes telling you something scary about the future tell it: "It is only your opinion, but you do not know it for sure." Think of the brain as someone who comes with his opinion. It is only his opinion, no more than that.
Worries are part of our life, but they can shorten it. Be aware of that and do something about: Do not pretend you know the future. It is uncertain!
Studying the mind and/or the brain is not new. It is new for modern science, but our ancestors knew about the functioning of the brain, specially the mind. The great Masters around the planet understood very well how the mind works and they studied trough meditation. Meditation is the best way to study oneself, our own mind.
Through meditation we become the objective, the aim. Study oneself is possible once we learn to meditate properly. We have to pay the price for that because it is not for beginners. You certainly need a proper training, patience and perseverance. It does not take a few practice, but many to achieve self-control or control of the mind.
Having a proper teacher to guide us is very important...