The Claim
Host developmental stage and parasite biology modulate the relationship between testosterone and Trichuris trichiura infection, such that higher testosterone concentrations are associated with increased infection risk during adolescence and reduced parasite load during active infection.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In humans, higher testosterone levels are linked to greater risk of Trichuris trichiura infection during adolescence but to lower parasite numbers during active infection, depending on developmental stage and parasite characteristics.
See the scientific wording
The relationship between testosterone and Trichuris trichiura infection is influenced by host developmental stage and parasite biology, with higher testosterone linked to increased infection risk during adolescence but reduced parasite load during active infection, suggesting that immune tradeoffs are context-dependent rather than uniformly immunosuppressive.
During adolescence, higher testosterone weakens the immune response that normally kicks out whipworms, making it easier to get infected. But once infected, the body responds by lowering testosterone and boosting anti-inflammatory signals to prevent tissue damage, which reduces the number of worms without fully clearing them.
What the research says
1 studyIn teenage boys, higher testosterone makes it more likely to catch whipworm, but if they do get infected, their bodies seem to respond better — they have fewer worms. This shows hormones and immunity work differently depending on age and the type of parasite.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.