我的英语作业，请大家点评指正

yuyangzi1

凡能补血养血，改善或消除虚证症状的药物称为养血药。衰老的机制相当复杂，血虚无疑是其重要的原因。血虚的基本症状是：面色萎黄、唇舌色淡、头晕眼花、手足发麻、心慌心悸等。此时服用养血药物，可促进周身血液循环，使脏器功能协调而推迟衰老。养血药质多粘腻，过服常影响食欲。
The drugs which nourish the blood, improve or eliminate asthenia syndrome are called blood- enriching drugs. Hemopenia is a main cause of the complicated mechanism of senility. Its elementary manifestation includes sallow complexion, pale lips and tongue, dizziness, benumbing extremity, palpation. The drug can slow down senility by promoting blood circulation and coordinate viscus’ function. Blood-enriching drugs usually are viscid and greasy in quality, so, over dosage may affect appetite.