Insight by Food
Wasabi, mustard, and horseradish burn the nose because their active isothiocyanate molecules are small and volatile enough to vaporize and reach the sinuses, where they stimulate nasal pain receptors and cause tearing or nasal burning.
Want more like this?
Every card on Korva is an insight someone saved from a podcast or video they loved.
More from @food's Picks
See all →When consumed in large amounts, sugar can prevent the normal habituation of dopamine response, so continued high dopamine release sustains reward and incentive to keep consuming similarly to addictive drugs.
Commercial flocks are highly vulnerable to disease because genetic uniformity removes variation in resistance, so a single introduced pathogen can spread across nearly all birds instead of being limited by naturally resistant individuals.
Dopamine produces stronger motivational effects in brain 'hotspots' because dopamine receptors are unevenly clustered across forebrain regions, so release in dense receptor areas is amplified and more strongly drives behavior.