人体感受味道,主要是靠舌头上的味蕾和味觉神经的作用。随着年纪的增长,老年人的味蕾会变得比较小,甚至萎缩,再加上味觉神经退化,因此会影响对味道的敏锐度。在酸甜苦辣咸中,老年人对咸味的感受退化得最厉害。发表在著名的医学期刊《新英格兰杂志》的一篇文章指出,老年人对咸的敏感度要比年轻时降低很多,对甜和苦的 Body taste, mainly by the taste buds on the tongue and the role of taste nerves. As they grow older, the taste buds of the elderly will become smaller or even shrinking, which in turn will degrade the taste and therefore affect the sensitivity to taste. In the sour, sweet and sour salty, the elderly feel the most degradation of salty. An article published in the prestigious medical journal New England Journal points out that seniors are less sensitive to salty than they were when they were young,