18．Hair Loss （Alopecia）
Information about male pattern baldness（秃顶） causes，triggers and treatment in the UK
In contrary lo popular belief，hair loss-or alopecia-can start at any age．Whilst it is associated with mature males，and statistics show it does mainly affect men about 40，the reality is you can notice symptoms in your 30s，or even 20s and teen years．The NHS statistics state that 25% of men start losing their hair by the time they reach 30．The most common form of hair loss is male pattern baldness-also known as androgenic alopecia-that affects more than half of men around the world．
One option many men seek is treatment to avoid further hair loss，especially early on in the process．With treatments，such as Propecia，that specifically target male pattern baldness，it is possible to stop hair loss completely and even encourage fresh new hair growth．
What is alopecia？
Alopecia is the medical term for hair loss．Most commonly affecting males，hair loss in men is caused by an increased sensitivity to the male sex hormones （androgens）．The type of alopecia you have （as well as hereditary and external factors） can influence levels of hair loss．The most common type of hair loss （alopecia） is male and female pattern baldness．Other types include：
•Alopecia areata （patches of baldness，usually on the scalp）
•Scarring alopecia （hair loss directly affecting the hair follicles）
•Telogen effluvium （hair thinning over a larger area on the top of the head，rather than bald patches）
•Anagen effluvium （most commonly caused by cancer treatments such as chemotherapy and radiotherapy）
60．Which of the following statements is FALSE about Propecia？C
A．It can stop hair loss almost in all cases．
B．People can buy it online without doctor visit．
C．It encourages new hair growth in rare eases．
D．It is especially effective on male pattern baldness．
61．We can learn from the passage that alopecia isB．
A．an inevitable part of aging process
B．more common among mature males
C．unnoticeable before 40years old
D．mostly influenced by external factors
62．The next part of the webpage is most likely to be aboutA．
A．hair loss causes
B．hair loss symptoms
C．preventing hair loss
D．treating hair loss．
