There’s a lot of talk out there about positive affirmations, but do they really do anything? Research has revealed that negative words and thoughts have a damaging neurochemical effect. The brain interprets negative words and thoughts as a threat and it goes into survival “fight, flight, or freeze” mode, which in turn releases stress hormones and interrupts rational thinking and decision making. The good news is that positive words and thoughts can counteract the negativity. The bad news is that positivity isn’t perceived as a threat and, thus, the brain does not respond as swiftly or dramatically to positive words as it does to negative ones. Researchers say that we must repeat positive thoughts or words a minimum of three times for every negative one. This engages the motivational center of the brain and reduces stress. So yes, science tells us we should keep saying those daily affirmations.