Why: There is some evidence that omega-3 fatty acids may ease anxiety symptoms and lift your mood by lowering levels of stress chemicals such as adrenaline and cortisol in the body. Caned fatty fish, such as tuna and salmon, walnuts, and flax seeds are all great sources of omega-3 fatty acids.
As you may already know from reading How Butterflies Work or Where do butterflies get their striking colors?, butterfly wings are made of very thin layers of a hardened protein called chitin.
1 The stomach muscles get extra-sensitive during the fight-or-flight response, and thatâs partially what causes the butterflies. 2  Neurons along the brain-gut axis let the stomach know when weâre freaking out about something. 3  Butterflies and the fight-or-flight response may serve an evolutionary function.