6. Issue: Dandruff 頭皮屑

Dandruff can be hereditary, but it's still a mystery what causes the flaky stuff. Daily shampooing is your first line of defense, but if the itchiness and flakes persist, try an anti-dandruff product. Dr. Mirmirani cautions sparing use of these products, however, because they are very harsh to your hair fiber. Try alternating the anti-dandruff product with regular shampoo until the dandruff clears up, and then switch back to your regular shampoo.

頭皮屑可以遺傳，但什么原因導致了片狀東西的產生還是一個謎。每天洗頭是你的第一道防線，但是如果發癢且頭屑一直存在的話，就去試試去屑的產品。但是，馬諾莫尼告誡大家要謹慎地使用這些產品，因為它們對你的頭發纖維刺激性很大。用去屑產品替代常規洗發水，一旦頭皮屑清除，就換回常規洗發水。

7. Issue: An unexpected bald patch of hair 意想不到的禿頂

You may have Alopecia Areata, which occurs when your immune system starts attacking the hair bulbs. It doesn't destroy it, but the bulb won't start to grow again until the attack is called off. According to the National Alopecia Areata Foundation, it affects five million people in the U.S. "It could be stress or it could be environmental factors -- we really don't know," Dr. Mirmirani says. It can happen one time or recur with some frequency. If you find a sudden bald spot, see your dermatologist.

當免疫系統開始攻擊毛球，你可能出現禿發現象。免疫系統并沒有摧毀它，但是毛球在攻擊停止之前不會再生長了。根據全國禿發基金會的數據顯示，禿發影響到在美國的500萬人。馬諾莫尼醫生說：“至今我們不知道確切的原因，這可能是壓力或者環境因素造成的?！倍d發可能發生一次也可能以一定的頻率發生。頭發還能變黑因為這不是永久性的損壞。如果發現突然性的禿發，請去找皮膚科醫生。

8. Issue: Thicker hair than you've ever had before. 頭發比以前更密

Either you're just super lucky, or you're about to have a baby. Sure, the hormones of pregnancy can make you lose your lunch, but they are also the cause behind the thick, lustrous hair you'll probably notice if you're expecting. When you're pregnant, your hair stays in a high state of hair growth, with only minimal hair loss. Enjoy it while it lasts!

要么你只是超級幸運，或者你即將有一個孩子。當然，孕激素使你對午餐失去胃口，但是你可能注意到它們也是你頭發變得濃密有光澤的原因。當你懷孕后，你的頭發會保持高增長的狀態，只有很少的頭發會脫落。享受這段頭發持續高增長的時光吧！