Lol, you are just making a fool of yourself getting owned post after post by Bull terrier, Come on son, get back to school, you have not presented no proofs whatsoever about your shitty theory of fighters in their 30s and 40's not being a match for youngsters, BULLSHIT.
What are you talking about?
Do you actually believe that a 38 year old professional fighter can compete with a 28 year old fighter without some extra help?
I am 40 years old. I lift weights 4 times per week, and do cardio (running, swimming) twice a week (3 times in summer). I eat healthy and specifically for my weight training, and drink my protein shakes. I hardly drink, and have no health issues. I have buddies and trainingpartners my age that also do powerlifting and different kinds of sports. The only thing I can point my finger on is that I don't get enough sleep, because of big workloads and family life. Since I have some heart issues in the family, I go to the doctor once a year to test everything, and he even tests my testosterone. According to him, I am in the upper normal range for my agegroup (I don't know the number).
1. My physique is very good for my age, but nowhere near my twenies and early thirties (even if I partied every weekend, often would skip leg days and did not watch my protein intake). My friends that also has done all kinds of training have the exact same story to tell. With age, you are slower, weaker, less agile, less flexible, and get injured more often. Talk to any pro athlete, and they will tell you the same story.
2. All evidence suggest that testosterone levels drop drastically when you are older. Nobody at 40 has "high" testosterone levels. They might have high for their agegroup, but not high compared to a pro 25 year old. Google it.
3. The average professional athletes retirement age is 33 across all sports. That is for a reason. google it.
4. In most sports 30 is considered old. Google it.
5. (cardio) VO2max tends to decline by about 10% per decade after the age of 30. The reason VO2max declines with age is that our maximal heart rates go down as well. Even a 5% decline will cause big issues vs a younger athlete.
6. Everyone knows that both type 1 and type 2 musclefibers decline with age. Nothing to do with that.
This BullTerrier might be your hero, but he has said nothing that is true in his posts. He is putting up some statistics that has nothing to do with this, and I am sorry to say, but your buddy is very naive, and know very little. Alos, testosterone is not the only reason for athletes declining.