Photo by PR Photos
DiCaprio, 41, has had signs of recession for years, but he is fortunate because his hair loss is isolated to this area. As you can see in photos, while hairline is maturing, typical of an adult hairline, he has yet to see any frontal balding. He is also fortunate to have an otherwise full head of hair.
Hair loss is not uncommon for men in their 40s - in fact, the percent risk of hair loss is proportional to your age: i.e., 20% in 20s, 30% in 30s, 40% in 40s and so forth. It's important to get tested early on to see if you're at risk for male pattern hair loss. Genetic tests like HairDX are available at your local hair restoration specialist.
Science has proven if you wait until the hair loss is visible to the naked eye, you're too late - you've already lost 50 percent. In DiCaprio's case, it would be wise to consult a hair restoration specialist now and consider starting on preventative treatments to ensure he slows down any further recession and keeps the hair that he has strong and healthy.