The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
prepubescent females, very low levels of estrogen, during puberty, levels of estrogen, AKA estradiol, basically skyrocket, and then across the lifespan, estrogen is going to vary depending on the stage of the menstrual cycle, but as one heads into menopause, which typically takes place nowadays somewhere between age 45 and 60, levels of estrogen are going to drop and then post-menopause levels of estrogen are very low.
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Native comments, Twitter mentions, and Reddit threads about this claim — surfaced together so the conversation isn't fragmented across platforms.
Bookmarking — the dossier-vs-overview split is the right call. Most of the time I want overview; sometimes I want receipts.
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now estrogen and testosterone and their derivatives are what we call sex steroids but I just want to emphasize that estrogen and testosterone are present in everybody it's their ratios that the determine their effects So today we're going to talk about how specific types of exercise particular patterns of cold exposure as well as particular patterns Believe It or Not of breathing can impact sex steroid hormones both estrogen and testosterone so one of the first things to understand if you want to optimize your hormones is where they come from there are a lot of different glands in the body that produce hormones but when we're talking about the sex steroid hormones estrogen and testosterone the major sources are ovaries for estrogen and the testes for testosterone although the adrenals can also make testosterone now there are also some enzymes enzymes are things that can change chemical composition and the enzymes that we're going to talk about today are the aromatases mainly the aromatases convert testosterone into estrogen so in a male for instance that has very high testosterone some of that is going to be converted into estrogen by aromat taste the important thing to know is that prepub ENT females make very little estrogen and when we talk about estrogen we mainly talk about estrad which is the most active form of estrogen in both males and females so preu and females very low levels of estrogen during puberty levels of estrogen AKA estradi basically Skyrocket and then across the lifespan estrogen is going to vary depending on the stage of the menstrual cycle but as one heads into menopause which typically takes place nowadays somewhere between age 45 and 60 levels of estrogen are going to drop and then postmenopause levels of estrogen are very low as well