乘坐飞机前的饮食
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-INDENT: 21pt; mso-char-indent-count: 2.0"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">有些人在乘坐飞机时，往往会出现头晕、胸闷、恶心、胃肠胀气，甚至呕吐等症状，这与机前饮食有很大关系。为此，乘机前要做到饮食几个注意：</SPAN> <SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </SPAN><SPAN lang=EN-US> <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> 一忌大荤及高蛋白贪物，因为高脂肪、高蛋白食物在胃里停留时间长，难以消化，一般需要４至５个小时才能从胃中排空，加之人在空中消化液分泌量减少，胃肠消化功能减弱，更容易出现胃肠膨胀，腹部难受、胀气、打呃等消化不良反应，因此，上飞机前应以吃清淡的食物为宜。</SPAN> <SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </SPAN><SPAN lang=EN-US><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> 二忌进食大量的粗纤维食物，一个人在正常情况下，胃肠道内含有</SPAN><SPAN lang=EN-US>1000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">毫升气体，其中由口吞入的约占</SPAN><SPAN lang=EN-US>80%</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，消化食物时所产生的气约占</SPAN><SPAN lang=EN-US>20</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">％。随着飞行高度的上升，气压越来越低，胃肠道内的气体就会发生膨胀。若飞行到</SPAN><SPAN lang=EN-US>5000</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">米高度时，胃肠道中的气体要比地面上的增加</SPAN><SPAN lang=EN-US>2</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">到</SPAN><SPAN lang=EN-US>4</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">倍，临行前如果吃了一些容易生气的食物如汽水啤酒萝卜等，在飞机上就容易产生不适。</SPAN> <SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> </SPAN><SPAN lang=EN-US><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> 三忌进食过饱或空腹上机。因为飞机升到高空后，胃肠血液的供给相对减少，致使胃分泌减少，胃肠蠕动减弱，不利于食物的吸收。</SPAN><SPAN lang=EN-US><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"> 如果上机前进食过饱，因胃内空气增多而加重心脏的负担。相反，乘飞机前也不宜空腹，否则，由于血糖消耗量增加而产生低血糖反应，会出现头晕、恶心、呕吐等症状，或是原有的</SPAN><SPAN lang=EN-US>“</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">晕机</SPAN><SPAN lang=EN-US>”</SPAN><SPAN style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">症状加重，所以，上飞机前适当吃点东西，既不要吃得太饱，也不宜空腹上机。</SPAN><SPAN lang=EN-US><o:p></o:p></SPAN></P>
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