Some degree of hair loss is evident in what percentage of men and women by age 35

• A. 20%
• B. 40%
• C. 60%
• D. 80%

Answer: (B)

By age 35, some degree of hair loss is already present in about forty percent of people. This reflects the early onset of thinning that many adults experience from processes like androgenetic alopecia, which can begin in the late 20s to 30s in both men and women. Forty percent is a realistic middle ground: it’s high enough to reflect that thinning is common at this age, but not so high that it would suggest the vast majority are affected. Remember, this refers to detectable thinning, not complete baldness. In men, the loss often shows up as recession at the temples or crown, while in women it tends to be diffuse thinning over the scalp.