3 forming a mathematical complement. sine and cosine are complementary functions. 4 (Maths, logic) (of a pair of sets, functions, etc.) mutually exclusive and exhaustive, each being the complement of the other. 5 (of genes) producing an effect in association with other genes. 6 involving or using the treatments and techniques of complementary medicine.
We know that fertility does decline. We know that after the age of 30, there is a drop in testosterone of 1 percent a year. Testosterone is the energy, the hormone that you need to make good-quality sperm.
Below are standard testosterone levels for men of various age groups. Part of the challenge is that if you want to feel 30 when you are 50, you would theoretically want to get your testosterone level to that of a 30-year-old, but most practitioners would rather get you to where your age predicts.evertheless, if you feel like sludge, then some doctors will treat you even if your levels are in the low normal range for your age. Here are the typical ranges for men: 1  Age: 20-40 testosterone level: 400-1,080.