Estradiol daily fluctuation ?

[coz]

Do Estradiol levels fluctuate through the day like Testosterone ? Ie are they higher in the morning and lower in the day ?

If you wanted to check your Estradiol – is it advisable to then check it at a certain point in the day (like testosterone in the morning) ?

[avast322]

Hmm, I would think that it would probably be highest in the morning since any excess testosterone is aromatized. However, estradiol has a much longer half life than testosterone (6x actually). It also is probably correlated with the luteinizing hormone surges experienced during the day.

[hardasnails1973]

I believe its higher at night time because there is a lag time between conversion of testoserone to e2 and also when T is the lowest.

[Author]

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