Index/Topics/Semen quality and fertility

Semen quality and fertility

The relationship between ejaculation frequency and semen quality, including potential effects on fertility and conception.

Fact-Checks

7 results
Jan 19, 2026
Most Viewed

How does ejaculation frequency affect sperm quality and fertility across ages?

Recent observational and experimental studies show that ejaculation frequency (EF) shifts semen metrics in predictable short-term ways—higher EF tends to lower sperm concentration and total count but ...

Jan 23, 2026
Most Viewed

What peer‑reviewed studies exist on sexual practices like swallowing after oral sex and what do they show?

A small but persistent body of peer‑reviewed research has examined as part of oral sex, with work ranging from immunological hypotheses about pregnancy outcomes to infectious‑disease and behavioral su...

Jan 28, 2026
Most Viewed

What lifestyle factors can influence semen volume decline after age 40?

, especially after the late 40s, but lifestyle choices interact with—and in some cases amplify—that decline; smoking, heavy alcohol use, obesity, poor diet, lack of exercise, sleep disruption, and env...

Jan 21, 2026

What clinical evidence exists for ashwagandha, maca or horny goat weed increasing semen volume?

Clinical evidence that any of the three herbs reliably increases in humans is limited but non‑zero: multiple randomized and controlled trials plus a small pilot trial report increased semen volume wit...

Jan 22, 2026

semen

Semen is a bodily fluid made mostly of water with small amounts of sperm, sugars, proteins, minerals and hormones, and while it contains trace nutrients and bioactive molecules, the scientific consens...

Jan 12, 2026

How do ejaculation frequency and fertility interact across different age groups?

Higher ejaculation frequency (EF) tends to lower sperm DNA fragmentation and improve some functional semen parameters without consistently harming motility, while short abstinence before ovulation can...

Jan 28, 2026

does cheese make you cum quicker

There is no credible scientific evidence that (i.e., “cum quicker”); the peer‑reviewed literature instead examines —sperm count, motility and morphology—not the timing of orgasm or ejaculation latency...