This is all thanks to a rush of chemicals and hormones that flood your brain and body when you fall in love. This leaves you with feelings of euphoria similar to an endorphin-induced “runner's high.” There's nothing you can do about this; love physically makes you crazy.
i think it’s from where we get adrenalin, and that pushes us to kinda want to do more things so in intense situations we tend to kinda feel more energy rush through our bodies and we want more
