News India Live, Digital Desk: We often cry in front of others or complain about circumstances to vent our anger. We think this is calming the mind, but according to a research by Stanford University, constant negativity and complaints can shrink the hippocampus of your brain.1. Attack on Hippocampus (Brain Shrinkage)Hippocampus is the part of the brain which is responsible for memory and problem solving. Effect: Constant complaining increases the level of ‘cortisol’ (stress hormone) in the body. Result: Excess of cortisol starts destroying the neurons of the hippocampus, due to which your thinking ability starts decreasing. 2. ‘Rewiring the Brain’ Our brain is very flexible. When you complain repeatedly, a special path is formed between the neurons of the brain. Science of Habit: The next time a small problem arises, your mind will automatically run towards negative thoughts. That means your brain becomes ‘hard-wired’ for negativity.3. Danger of ‘Second Hand Complaining’ Just as ‘passive smoking’ is dangerous, listening to complaints of others is also harmful for you. Mirror Neurons: When you sit with someone who keeps crying continuously, the ‘mirror neurons’ of your brain start copying the same emotion. Due to this, your energy also starts decreasing and you start feeling stressed without any reason.[Image showing a stressed person surrounded by negative thought bubbles]4. Cortisol: The body’s enemy When you complain, your brain goes into ‘fight or flight’ mode. Physical harm: This increases blood pressure, blood sugar level becomes high and your immunity starts weakening. In the long run it can cause heart diseases.5. How to change this habit? (Expert Tips)Gratitude: Think of at least 3 things a day for which you are thankful. It can reduce cortisol by 23%. Be solution oriented: Instead of discussing the problem, talk about its solution. Distance from negative people: Limit the time you spend with people who always talk negatively.