 you know feedback to your brain and it produces the same amount of adrenaline as if you were to jump in cold water and that is going to immediately shut off your melatonin and you're going to go back to sleep and you're not going to get REM sleep which that can be a whole nother subject subject but um yeah red light is essential and you can probably find it about anywhere do you want to say it's overrated or underrated uh underrated the red light therapy um