If you're looking to abstain from ejaculating for whatever reason, you should know that any built up semen (from "edging", sex, masturbation, etc.) that isn't expressed through ejaculation will be voided the next time you urinate.
I often advise men that are having problems with getting too erect during their PE sessions to ejaculate about 15 minutes prior to their workouts. This advice usually led to improved workouts!
The key to being able to ejaculate after a PE session (a painful must for some men) and it not affecting your gains depends on the exercise sequences that you perform AND the fitness level of your penis-
-If you've been doing progressive stamina work for any length of time, a mere ejaculation should not affect your penis badly enough to affect gains
-If you finish your workout with the "Stop and Start" [an exercise that ends in ejaculation], you will have expanded the tissues and driven more blood to your penis than had you not done anything at the end of your workout
-A properly performed cool down using hot wraps will drive the blood back into the penis
-You can also do erect kegels throughout the day to negate any of the blood draining effects of ejaculation
-You may even try wearing a cock ring after you ejaculate to avoid your penis fron shriveling up entirely.
As you can see, there are ways around this issue.
I am aware of the Chinese study that shows a spike in testosterone levels after 7 days of abstinence. What I don't understand is why so many men, after reading this study, would subject themselves to abstinance in the hope of making gains! If you read through the study, you'll note (as guyeh7 stated) where it states: "No regular fluctuation was observed following continuous abstinence after the peak." It should also be noted that additional testosterone in your bloodstream will not increase your penis size if you are a healthy adult.
Do you wish to raise your testosterone and growth hormone levels at will? EXERCISE! Regular exercise, especially intense whole body exercises like squats and deadlifts, will raise your testosterone and GH levels.
Ejaculate is composed of seminal plasma and [by a small percentage of volume] sperm. The actual hormonal content in semen is quite small.
Most professionals agree that a healthy sex life INCREASES hormonal output. The genitourinary system is like any other set of organs in the body- use it or lose it!
If you're trying to maximize penile blood flow, you should try to avoid consuming caffeine and other vasoconstrictors. Theses substances will cause much more harm to your progress than any ejaculation would! If you need to consume these substances, do so several hours before or after your PE session.
