我喜歡吃辛辣的食物, 但漸漸地感覺不到辣。有甚麼方法能令我尋回辛辣的感覺??(15分x2)

i don't think so

You can taste the food just because of the receptors on your tongue are stimulated.
Then the sensory information will be transmitted to the brain for analysis.

The degree of stimulation really depends on the number of particular type of receptors on your tongue.

Why people say they will lose the sensation after exposing for a long time?

It is because our body will be able to adjust the amount of receptors on the tongue. If there is a strong stimulation lasting for a long time, our body will reduce the number of receptors on the tongue. As a result, people will lost their sensation after a while.

However, this process is reversible. If you haven't tried the spicy food for a while, the number of spicy receptors will be enhanced and you will recover the spicy sensation.

吃辣的結果是越吃越辣，要回到從前的感覺是很難的，但有一方法不妨一試，而結果亦因人而異(對我是有效)，就是暫停吃辣一段長時間(約一年)，然後再吃辣，這樣會對辣的程度降低，但不會因此而回復從前的感覺。