辣并不是一种味道,而是一种灼伤感,那么人类为什么会喜欢这种感觉,很多人还嗜“辣”成性呢?辣椒是一种原产于中美洲和南美洲的植物,色泽诱人,味道火爆,是大部分人不能拒绝的美味。辣椒为什么会带来“辣”和“爽”的感觉呢?这还要拜辣椒素所赐。辣椒素是一种含有香草酰胺的生物碱,能够与感觉神经元的香草素受体亚型1(vanilloid receptor subtype1,VR1)结合。由于VR1受体激活后所传递的是灼热感(它在受到热刺激时也会被激活),所以吃辣椒的时候,感受到的是一种烧灼的感觉。这种灼热的感觉会让大脑产 Spicy is not a taste, but a burning sensation, then why do humans like this feeling, many people also addicted to “spicy” into it? Pepper is a plant native to Central and South America , Attractive color, taste hot, most people can not refuse the delicious. Why does pepper bring “spicy ” and “cool ” feeling? This also thanks to the capsaicin gift. Capsaicin is a vanilloid-containing alkaloid that binds to the vanilloid receptor subtype 1 (VR1) of sensory neurons. Since the VR1 receptor delivers a burning sensation when it is activated (it is also activated when it is stimulated by heat), it feels a burning sensation when eating peppers. This hot feeling will make the brain produce