- P(gun)]
2016иx俼ز
ƪ2016иԇxṩoλϣゃ俼

زһ˽҂^l(f)
A human hair consists mainly of a protein called Keratin. It also contains some moisture and the trace metals and minerals found in the rest of the body.
(li)^l(f)ҪһNнõĵ|(zh)MˮּwҲҵٺ͵V|(zh)
The only living part of hair is underneath the scalp--when the hair had grown through the scalp it is dead tissue.
^l(f)ΨһIJ^ƤL(chng)^Ƥr(sh)ɞo(w)M
Hair’s natural shine is supplied by its own conditioner, sebum, an oil composed of waxes and fats and also containing a natural antiseptic that helps fight infection. Too much sebum results in greasy hair and conversely, too little sebum makes dry hair.
^l(f)ȻɁ(li)ol(f)أ֬Ϟ֬߀пȾȻ֬^(gu)(hu )l(f)|(zh)෴֬^(gu)لt(hu )¸l(f)|(zh)
Hair grows about 12 mm per month. If a person never has his hair cut, it would grow to a length of about 108 cm before falling out. Hair grows faster in the summer and during sleep. A single strand lives for up to seven years.
^l(f)ÿ(g)¿L(chng)12һ(g)ˏIJl(f)^l(f)(hu )L(chng)108ײ_(ki)ʼÓ˯X(ju)ĕr(sh)^l(f)L(chng)^һ^l(f)ĉL(chng)_7
Healthy hair is highly elastic and can stretch 20 or 30 per cent before snapping. A human hair is stronger than copper wire of the same thickness. A combined strength of a headful of human hair is capable of supporting a weight equivalent to that of 99 people.
^l(f)dzЏL(chng)20%30%һ^l(f)ͬȴּ~z߀ҪY(sh)M(mn)^^l(f)һɽ(jng)99(g)˵
Scandinavians normally have thin, straight, baby-fine hair, and mid Europeans hair that is neither too fine nor too coarse. People native to the Indian subcontinent have coarse textured tresses while Middle Eastern populations have strong hair. The hair of Chinese and Japanese people is very straight; that of Latin-speaking and North African peoples can be very frizzy and thick.
˹ļ{S˵^l(f)ֱּ냺^l(f)һ;вW˵^l(f);ӡȴδ˵^l(f)Ҵ^;Ж|˵^l(f)ܽY(sh);Ї˺ձ˵^l(f)dzֱ;Z(y)Ҽǵ^^l(f)
Notes:
scalp [skælp] n. ^Ƥ;Ʒ
conditioner: ol(f)
antiseptic [,ænti’septik] adj. ;dzn.
copper wire : ~(xin)
Scandinavian [,skændi’neiviən; -vjən] n. ˹ļ{S
coarse textureֽY
زĶڶ옷(l )
The slower you build up energy in the morning, the more painful waking up will be. What's better, spending thirty minutes wrestling with the snooze button followed by an hour ramp up to normal mental functioning or quickly starting the day with energy?
Here are a few things to reduce the transition period from being asleep to becoming fully alert. Not only does speeding up this wake-up process save time, it makes waking up less of a struggle.
1. Light
Your body's natural clock is tuned to the amount of light. Turn on all the lights in your room right after waking up. Getting bright lights can help trick your body into thinking it is time to get out of bed.
2. Exercise
Put something physical right at the start of your morning. In the summer, I did a quick morning run and found it helpful in shaking off any sleepiness. Considering the outside temperature hovers around -30 C, I've stuck to doing a few pushups in my room. The exercise gets your heart pumping and snaps you out of a groggy state.
3. The 10-Minute Rule
If you want to stick with a consistent wake-up time, practice the ten-minute rule. This means you commit to staying awake for at least the next ten minutes. Once you get over that initial period, the temptation to go back to bed is usually gone.
4. Active Work
Start your day with work that actively uses your mind. Creative activities like writing, drawing, programming or designing work better than passive activities like reading. By focusing your mind early you can stay focused and brush off any unwanted drowsiness.
5. Don't Skip Breakfast
Wake up early enough to get something to eat. Skipping meals throw your metabolism out of balance, causing you to gain fat and lose energy. Skipping breakfast also means your blood sugar will be low in the morning and energy levels down.
6. Commit to a Sleep
Schedule The obvious solution to combat sleepiness is to get more rest at night. Carrying a sleep debt throughout the week with the hopes of paying it off on the weekend is a bad strategy. Instead, compress your work into the morning hours so you can get the 6-8 hours you need each night.
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