My test level came back at 487. The doctor said that is normal for a 40 year old. I did a little research and that seems like it kind of low.
Another thing to think about is that it is normal for testosterone to decline with age, but do you want the test level of a young man or an old man? Also at age 40 diabetes is normal, high cholesterol is normal, obesity is normal, but none of these things is desirable.