到底几点上床睡觉最健康
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=center><B><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><FONT color=#000000><SPAN lang=EN-US><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p></SPAN></FONT></SPAN></B> </P><P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=center><B><SPAN lang=EN-US style="FONT-SIZE: 9pt; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt"><o:p><FONT color=#000000> </FONT></o:p></SPAN></B></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: center; mso-margin-top-alt: auto; mso-margin-bottom-alt: auto; mso-pagination: widow-orphan" align=center><SPAN lang=EN-US style="COLOR: #2a2a2a; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt"> </SPAN><SPAN style="COLOR: blue; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt">俗话说,“早睡早起身体好”,这是有一定科学道理的。人在睡眠的时候,意识相对不清楚,肌肉的随意运动停止,从而帮助大家恢复体能、巩固记忆力,其重要性仅次于呼吸和心跳,是维持健康不可缺少的。有了良好的睡眠,可以使第二天保持清醒和活力。<SPAN lang=EN-US><BR><BR></SPAN> 睡眠的产生,主要靠大脑分泌的激素———褪黑素来诱导,它的分泌非常有规律,在白天,血中的浓度极低,到了黑夜则显著升高,凌晨<SPAN lang=EN-US>2</SPAN>点—<SPAN lang=EN-US>3</SPAN>点时达到最高峰。随着褪黑素分泌量的逐渐减低,睡眠逐渐变浅,直到早晨自然醒来。</SPAN><SPAN lang=EN-US style="COLOR: #2a2a2a; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt"><BR><A href="http://blog.photo.sina.com.cn/showpic.html#blogid=49bbd7640100bkmf&url=http://static9.photo.sina.com.cn/orignal/49bbd764t5b8aa35fc5c8" target=_blank><SPAN style="COLOR: #0b4790; TEXT-DECORATION: none; text-underline: none"><?xml:namespace prefix = v ns = "urn:schemas-microsoft-com:vml" /><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype><v:shape id=_x0000_i1025 style="WIDTH: 285pt; HEIGHT: 189.75pt" alt="" o:button="t" type="#_x0000_t75"><v:imagedata o:href="http://static9.photo.sina.com.cn/bmiddle/49bbd764t5b8aa35fc5c8" src="file:///C:\DOCUME~1\dell\LOCALS~1\Temp\msohtml1\01\clip_image001.jpg"></v:imagedata></v:shape></SPAN></A><BR></SPAN><B><SPAN style="COLOR: #990000; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">建议十点半前准备睡觉</SPAN></B><SPAN lang=EN-US style="COLOR: #2a2a2a; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt"><BR><BR></SPAN><SPAN style="COLOR: #2a2a2a; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt"> 正常睡眠是由深睡眠和浅睡眠构成,两者交替出现,只有深睡眠才是有效睡眠,对消除疲劳、恢复体力起到重要作用,但它在每昼夜的总睡眠时间里,仅占<SPAN lang=EN-US>15%</SPAN>左右。人在夜间<SPAN lang=EN-US>0</SPAN>点—<SPAN lang=EN-US>4</SPAN>点之间容易获得深睡眠,正常成年人,一般在入睡<SPAN lang=EN-US>60</SPAN>分钟后才会进入第一次深睡眠。因此,我们建议,没有睡眠障碍的成年人在晚上十点半前开始进行睡前准备工作,如洗漱、放松、上床,保证<SPAN lang=EN-US>11</SPAN>点前入睡,<SPAN lang=EN-US>1</SPAN>个小时后顺利进入深睡眠,以保证良好的睡眠质量。<SPAN lang=EN-US><BR><A href="http://blog.photo.sina.com.cn/showpic.html#blogid=49bbd7640100bkmf&url=http://static13.photo.sina.com.cn/orignal/49bbd764t5b8b31af444c" target=_blank></A><A href="http://blog.photo.sina.com.cn/showpic.html#blogid=49bbd7640100bkmf&url=http://static15.photo.sina.com.cn/orignal/49bbd764t5b8b35ff71fe" target=_blank><SPAN style="COLOR: #0b4790; TEXT-DECORATION: none; text-underline: none"><v:shape id=_x0000_i1026 style="WIDTH: 300pt; HEIGHT: 200.25pt" alt="" o:button="t" type="#_x0000_t75"><v:imagedata o:href="http://static15.photo.sina.com.cn/bmiddle/49bbd764t5b8b35ff71fe" src="file:///C:\DOCUME~1\dell\LOCALS~1\Temp\msohtml1\01\clip_image002.jpg"></v:imagedata></v:shape></SPAN></A><BR></SPAN></SPAN><B><SPAN style="COLOR: #990000; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt">失眠疗法:</SPAN></B><B><SPAN lang=EN-US style="COLOR: #990000; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt"><BR><BR></SPAN></B><SPAN style="COLOR: #2a2a2a; FONT-FAMILY: 宋体; mso-bidi-font-family: 宋体; mso-font-kerning: 0pt; mso-bidi-font-size: 10.5pt"> 除了注意开始睡觉的时间,正确的睡眠方法还包括以下几点,也就是国外一直提倡的“失眠行为学疗法”,简便易行,适用于各种类型失眠症的治疗。<SPAN lang=EN-US><BR><BR></SPAN> <SPAN lang=EN-US>1</SPAN>.白天进行适度的体育锻炼,有助于加深睡眠;<SPAN lang=EN-US><BR><BR></SPAN> <SPAN lang=EN-US>2</SPAN>.不在床上进行非睡眠活动,如看电视、工作、思考、阅读等,这些不良的习惯,会引发睡前兴奋,破坏睡眠的正常节律,从而导致失眠;<SPAN lang=EN-US><BR><BR></SPAN> <SPAN lang=EN-US>3</SPAN>.若<SPAN lang=EN-US>20</SPAN>分钟后还未入睡,应离开卧室,找一个舒服的地方坐着或靠着,远离书、电视、电脑,安静地呆<SPAN lang=EN-US>20</SPAN>分钟。可以静坐或冥想,待有睡意时再回到在床上。如果一次不行,可重复进行。<SPAN lang=EN-US><BR><BR></SPAN> <SPAN lang=EN-US>4</SPAN>.不论每天几点入睡,清晨都应定时起床,即使是在周末和节假日,也应坚持固定的上床与起床时间,以此可维持正常的睡眠—觉醒节律,提高睡眠效率。<SPAN lang=EN-US><o:p></o:p></SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US><o:p><FONT face="Times New Roman" color=#000000> </FONT></o:p></SPAN></P> 能做到就好啊
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