Complaining is one of those things we do without even thinking about it. Some researchers have suggested that during an average conversation we complain to each other about once a minute.
From a health perspective, this should be concerning. When we complain, stress hormones are released that harm healthy neural connections in the brain. This also occurs when we aren’t actually complaining ourselves but are exposed to someone else grumbling.
In his book Three Simple Steps: A Map to Success in Business and Life, Trevor G Blake shared some Stanford studies showing that being exposed to 30 minutes of complaining each day physically damages the brain by peeling back neurons from the hippocampus (the part of the brain used for problem solving and higher cognitive functions). Over time this can actually lead to the hippocampus shrinking, resulting in decline in memory and adaptability.