The Claim
Elevated cortisol levels directly impair Leydig cells in the testes from synthesizing testosterone, even in the presence of luteinizing hormone.
Source: This Plant Increased Testosterone 37% and Dropped Cortisol 16%
What the research says
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Supports
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Challenges
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These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
How it works
0 studies reviewed
In plain English
High levels of the stress hormone cortisol reduce testosterone production by Leydig cells in the testes, even when luteinizing hormone is present to stimulate it.
See the scientific wording
Elevated cortisol levels directly impair Leydig cells in the testes from synthesizing testosterone, even when luteinizing hormone is present.
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