An 80 year old man can produce sperm although some 80 year old men may stop producing sperm or they may not produce as much sperm as they would when they were younger.
With advancing years the amount of capsular tissue increases in the mans testis.
A man can cum as often as they want to per day.
Some men cum as often as 4 times to 8 times a day and some men cum some more and others less.
A man releases sperm between 15 to 21 times in a week.
However there is no normal amount of times that a man should release sperm in a week or month etc.
It's all dependent on the man and some men don't release any sperm at all in a week or even months.
It's okay and normal to not release any sperm or ejaculate at all if the man does not want too at that time.
Myself I can go months without releasing any sperm and I'm fine.
If a person does not ejaculate, the unreleased sperm breaks down and absorbs back into the body.
Not releasing sperm should not cause any health problems.
However, if a person tries to ejaculate and is unable to, this could be a sign of an underlying medical condition.
Practicing semen retention is thought to boost testosterone levels, improve fertility, and lead to more intense orgasms.
It is hard to say whether there may be any real benefits of not ejaculating (medically referred to as semen retention).
There is not enough scientific evidence to recommend this practice to all men.
The body reabsorbs sperm that does not leave through ejaculation. This has no side effects on sex drive or fertility.
However, there may be possible side effects in people who delay or avoid ejaculating when sexually aroused.
Epididymal hypertension is when male sexual arousal does not result in orgasm or ejaculation.