It feels like you are on top of the world with the wind rushing through your hair, the blood pumping through your veins and a scream escaping from the very depths of your soul! A scream of excitement, exhilaration, fear and pure heaven?.

The "stomach-drop" sensation you feel on a roller coaster is scientifically known as Negative G-Force, which occurs when the coaster accelerates downward faster than the force of gravity. In this moment, your body experiences "weightlessness" or "airtime" as your seat drops away, while your internal organs—which are somewhat loosely attached—briefly continue to float upward. This physical sensation triggers the body's "fight or flight" response, causing the adrenal glands to flood the system with adrenaline and endorphins, which explains the intense rush of excitement and subsequent "high" riders feel. At the bottom of a hill, you experience Positive G-Forces, which make you feel heavy as you are pushed into your seat. This rapid alternating between heaviness and weightlessness, combined with the psychological thrill of perceived danger in a safe environment, creates the addictive "euphoric" feeling that roller coaster enthusiasts crave.