Yeah, that's why us humans reach for tasty carbs when stressed. Carbs lower stress hormones, boost serotonin and leptin.
When stay single digit body fat year round, it's very important to keep leptin high by eating enough carbs since most of our leptin comes from fat cells, when you are lean, most of your leptin is going to come from your diet. High carb diet at maintenance basically mimics a caloric surplus without the extra energy for fat storage, keeps muscles full and strong.
I've seen guys get a boost in energy when first starting keto/low carb since it upregulates cathecholamines aka fight or flight response ; noradrenaline/etc; it can be invigorating at first, but eventually fucks you up.