Your biological age is relative to your state of health.
Fertile people are healthy - drug free people. In mind, body and soul. Baby making is the domain of young and healthy people. Our relative age is a function of our overall health... To a large degree. But you must be realistic with the limits of age. Most of the people who request infertility help are in their 30s. There is no time to waste. You must shape up now.
Get sleep and sunshine like a champion. Eat and drink like a champion. Pee and poop like a champion. Exercise moderately only - please.
Tip for women: get a book for pregnant women. Follow the guidelines on health for pregnant women today. To be pregnant, you must eat, sleep, exercise and stay away from harmful products not recommended for pregnant women.
Edwin