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Survey research program conducted by the National Center for Health Statistics
National surveys show oral sex is common across ages but tends to increase with age: most adults (>75–80%) report ever giving or receiving oral sex, while adolescents report lower but still substantia...
National surveys and research reviews show oral-sex initiation typically clusters in mid-to-late adolescence (roughly ages 15–18) with prevalence rising sharply into the early 20s and then varying acr...
Two classes of interventions appear in the human cadmium literature: nutritional antioxidants (notably and broad vitamin supplementation) with a small number of human studies suggesting modulation of ...
Medical and sex-education reporting says repeated or forceful anal penetration can injure the anal canal and in some studies is associated with reduced resting anal pressure and fecal incontinence in ...
Available, peer‑reviewed population studies do not show a clear, large rise in men’s circulating estrogen (estradiol) across recent decades; some national analyses report stable or even declining estr...
Large surveys and reviews find an association between receptive/penetrative anal intercourse and higher rates of fecal incontinence (FI), with stronger links when practices are frequent (≥ weekly), in...
Reported rates of swallowing ejaculation among women vary widely across sources, but reliable, comparable cross‑country estimates are scarce because most rigorous sexual health surveys measure oral‑se...
Epidemiologic studies report an association between receptive anal intercourse and higher odds of fecal incontinence, but they do not prove that anal sex by itself causally destroys bowel control . Cl...
Supplemental L‑tyrosine is the biochemical precursor for the tyrosyl residues that become iodinated in thyroglobulin, but the rate‑limiting steps for circulating free T4/T3 and TSH setpoints are gover...
Urinary glyphosate concentrations are consistently higher in occupationally exposed groups—especially farmers who recently applied glyphosate—than in the general population, but non‑occupational expos...
A well-established body of peer‑reviewed literature and large public datasets documents extreme human anatomical measurements across weight, stature, cranial metrics and body shape, while a growing me...
Receptive anal intercourse is an established risk factor for anal cancer primarily because it increases exposure of the anal mucosa to oncogenic human papillomavirus (HPV), and multiple epidemiologic ...
Multiple population studies and narrative reviews report higher rates of fecal incontinence (FI) among people who report anal intercourse compared with those who do not: a large French survey of 21,76...
Large, repeated probability surveys like Britain’s Natsal series show that oral sex has become a common part of sexual repertoires over recent decades—especially among younger cohorts—and that rises i...
The materials you provided contain no direct, recent data on Donald Trump’s height or weight, nor any explicit comparison to the 2025 averages for men his age; available documents instead discuss long...
Most reputable surveys put the share of men who have ever given oral sex to a partner in the neighborhood of roughly four‑fifths: studies and reviews report figures between about 75% and 87% depending...
Large, probability-based national surveys and peer‑reviewed reviews consistently find that is a common across adult age groups: national studies report lifetime oral‑sex prevalence generally above 75–...
Yes — , particularly receptive anal intercourse (RAI) and related behaviors, have been associated with increased odds of fecal or anal incontinence in adults in multiple studies, but the evidence is o...
The literature indicates a consistent association between (RAI/API) and higher self-reported rates of anorectal symptoms — including (anal pain) and (FI) — across diverse study designs and populations...
There are surprisingly few true longitudinal studies that track anorectal structure and function over years of frequent receptive anal intercourse (RAI); the literature is dominated by cross‑sectional...