Mary Claire Haver
speaker
806 appearances
2 recordings
1 series
first heard Sep 2026
last heard 15 Sep
Mary Claire Haver’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 2 in all, peaking in Sep 2026 with 2.
Appearances
We're going to go through the labs again, step by step together.
Hair follicles depend on iron for the enzymatic driving matrix cell proliferation.
Basically, you need iron to keep hair cells healthy at the cellular level.
Iron deficiency reduces our ferritin, which reduces follicle function long before your hemoglobin drops.
What does iron deficiency hair loss look like?
So the pattern, it might mimic the female pattern hair loss, telogen, effluvium, or both.
You might have also had heavy periods for years and were never told your iron is low.
Number four, thyroid dysfunction.
10% of you listening to this have...
Unhealthy thyroid function, if not more.
Thyroid hormone is one of the master regulators of metabolic rate in every tissue, including the hair follicle.
So the pattern in thyroid dysfunction is thinning hair, often accompanied by the other symptoms of hypothyroidism, fatigue, cold intolerance, weight changes, constipation, mood changes, dry skin, all things we also see in perimenopause.
So you deserve to get your blood work checked to see if you're having one or both of these conditions at the same time.
Hypothyroidism is the most common culprit, but hyperthyroidism, an overactive thyroid, can also cause some shedding as well.
Number five, other causes, usually nutrient deficiencies and some medications.
So vitamin D, low D is associated with hair loss in multiple studies, and they wanna target a vitamin D level of at least 40.
In our clinic, because vitamin D is active in so many other enzymatic processes and tissues and body functions,
that have, you know, different levels we shoot for, we're looking for 60 to 100 for our vitamin D levels.
But for hair, it looks like getting it above 40 helps if you have low vitamin D. Vitamin B12 often associated and is low with a lot of women who are on GLP-1s, who are vegetarians, or who are on long-term PPIs, proton pump inhibitors.
So if you're on something like Omeprazole or one of the other proton pump inhibitors for a long time,
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