I am speculating here, but it wouldn't surprise me if one of the root causes is the quality of food we allow to be sold in the US. Sugar, salt, and other preservatives or flavor enhancers are in everything, and it impacts the nutrition you absorb and the health of your gut, which in turn impacts the chemical balances in your brain and proper brain function. Which impact mood and productivity.
I wouldn't be surprised if lack of quality sleep is another big contributor as people falsely believe the short term benefits of little sleep outweigh the long term negatives. Its false because you are more productive when well rested. Good sleep also balances the chemicals in the brain and stabilizes moods and health and promotes better productivity.
I wouldn't be surprised if lack of quality sleep is another big contributor as people falsely believe the short term benefits of little sleep outweigh the long term negatives. Its false because you are more productive when well rested. Good sleep also balances the chemicals in the brain and stabilizes moods and health and promotes better productivity.