Our thoughts are very powerful and affect how we feel, react and respond to what life brings our way. Remembering that

'thoughts are not necessarily facts'

even those that say they are - can help.

Thoughts are just electro-chemical reactions. They are mental cognitions—our ideas, opinions, and beliefs about ourselves and the world around us. They include the perspectives we bring to any situation or experience, which affect our point of view (for better, worse, or neutral). While thoughts are shaped by life experiences, genetics, and education, they are generally under conscious control. In other words, if you are aware of your thoughts and attitudes, you can choose to change them.

You can not change the past nor predict the future; so try to focus on the present. What are your thoughts? Try to look at them like carriages on a train going past without hopping onto the train. It will only cause stress if you do.

The Science

When you read these words, for example, the photons associated with the patterns of the letters hit your retina, and their energy triggers an electrical signal in the light-detecting cells there. That electrical signal propagates like a wave along the long threads called axons that are part of the connections between neurons. When the signal reaches the end of an axon, it causes the release of chemical neurotransmitters into the synapse, a chemical junction between the axon tip and target neurons. A target neuron responds with its own electrical signal, which, in turn, spreads to other neurons. Within a few hundred milliseconds, the signal has spread to billions of neurons in several dozen interconnected areas of your brain and you have perceived these words. (All that and you probably didn’t even break a sweat.) - extract from MIT