wieviel gene hat ein mensch — what symptoms are typical?

The question about the number of human genes and typical symptoms combines two distinct levels. Humans have approximately 20,000 protein-coding genes, plus thousands of non-coding RNA genes and regulatory elements – the total functional count is much higher. This number has been known since the Human Genome Project but is continuously refined. Typical symptoms cannot be meaningfully answered without reference to a specific condition. In the context of menopause – the main topic of the provided information – classic symptoms include hot flashes, night sweats, vaginal dryness, sleep disturbances, and mood changes. These are triggered by estrogen decline but are not specific; thyroid disease or anxiety disorders can mimic them. Laboratory testing (FSH >25–40 mIU/mL, estradiol <20–30 pg/mL) can support the clinical diagnosis but is not mandatory in typical cases. Importantly, genetic testing for menopause symptoms is not useful, as genetics explain only a small fraction of age at menopause. The evidence for symptoms is based on clinical experience and guidelines, not on the cited PRP study (PMID:38589612).