But Coffee can cause insomnia and restlessness. Again, it's the caffeine working here. Your recommended maximum amount of caffeine is 400 milligrams, roughly the amount that you'll get from 4 cups of coffee.
But Coffee can cause insomnia and restlessness. Again, it's the caffeine working here. Your recommended maximum amount of caffeine is 400 milligrams, roughly the amount that you'll get from 4 cups of coffee.