What year does the speaker cite for research linking fasting to DHEA depletion and cortisol increase?

Aaron Hartman, MDFunctional Medicine Specialist | Clinical Researcher

Why Women Should Fast to Their Cycles

7 Oct 2024 · 1 min

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Aaron Hartman, MD (YouTube) advises that women should time fasting to their menstrual cycles and age rather than fasting continuously. He warns continuous/constant fasting can cause hair loss, early menopause, weight gain, erratic mood, loss of menstrual cycles, and thyroid disruption. Citing research (not named) from 2022, he asserts prolonged fasting can deplete DHEA while raising cortisol because fasting acts as a physiological stressor; his practical advice: “fast to your cycles” and “fast to your age” (example: different approaches for a 53-year-old vs a 20-year-old).

Questions this video answers

2022

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You have to fast to your cycles, otherwise you can have hair loss. You can actually go into early menopause if you don't fast to your cycles. You can actually over time have weight gain as well as have an erratic mood. You have to fast to your cycles. This can also cause issues with loss cycles and even thyroid issues if you don't fast to your cycles. The issue if you fast constantly, day after day, week after week, month after month, over time. New research that came out in 2022 showed you can actually deplete your DHEA levels while your cortisol goes up. Why? Because fasting is a stressor, just like working out is a stressor, just like anything. And these stressors can be good if done the right way. But if you're done day after day after day, especially in women, men too, but especially women, what can happen is you get a low grade elevation, cortisol suppression of DHEA and things like hair loss and thyroid disruption. So though fasting is a powerful tool, you have to be careful with it. Fast to your age, particularly women. If you're like 53 versus 20 and you have to fast your cycles.