Because at 23 you have no idea what you are ruining for life.
Some might want to have children later.
Some might not want the plaque added to their arteries that constantly being on will add, little by little, year after year after year
LVH, high hematocrit, constant dyslipidemia, all kinds of other issues.
Not to mention the constant use of AI drugs - which were never designed to be taken long term - they do other things
Six months is harder to recover from. Your testicles respond more quickly to shutdown if they are not shutdown for a long period of time.
Did you know that injecting 250 mg once already shuts down your balls? Not for very long, but it shuts them down.
If you tested your testosterone, you would discover it bottoms out well below your normal, natural level before your balls get the message to kick in and start producing again.
Over time, however, disused, they actually begin to atrophy. Over enough time it becomes very, very difficult to get them to function again.
SUMMARY
In case you do not know it, there are two major issues that affect your recovery from using testosterone. One is age and the other is duration.
Age is in your favor at 23.
Duration is in your control. You can make it in your favor or you can set it against you by running six months.
Your choice.
Your balls are just as shut down at 250mg as they would be at 1,000mg. No endogenous production of testosterone is needed by your body once it senses that level of testosterone, so your testes will not produce.
Age
Duration
You control only one of them. Exercise that control in your own favor. Change the odds so that you are on the good side of the odds.
To determine factors that influence sperm recovery after testosterone-associated infertility. Clinical retrospective study. Academic male-infertility urology clinic. Sixty-six men who presented with infertility after testosterone use. Testosterone ...
pmc.ncbi.nlm.nih.gov