The Claim
Among adolescent males aged 12–19 in a high-parasite environment, higher salivary testosterone levels are associated with an 11.6-fold increased odds of infection with Trichuris trichiura, and among those infected, higher salivary testosterone levels are associated with a 1.21-unit reduction in parasite egg load per gram of stool.
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 adolescent males living in areas with high parasite exposure, higher saliva testosterone levels correlate with a greater likelihood of whipworm infection, but among those infected, higher testosterone levels correlate with fewer whipworm eggs in stool.
See the scientific wording
Among adolescent males aged 12–19 in a high-parasite environment, higher salivary testosterone levels are associated with a 11.6-fold increased odds of infection with Trichuris trichiura (whipworm), but among those infected, higher testosterone is associated with a 1.21-unit reduction in parasite egg load per gram of stool, suggesting a complex tradeoff between reproductive hormone activity and immune response during puberty.
Higher testosterone in teenage boys weakens the immune response that normally kicks out whipworms, making infection more likely. But once the worms are inside, testosterone also turns on a different immune signal that calms down inflammation, letting the body live with the worms without getting seriously sick — which shows up as fewer worm eggs in the stool.
What the research says
1 studyIn teen boys living where worms are common, higher testosterone makes it more likely they’ll get whipworm, but if they do, their bodies seem to fight it better and have fewer worms. It’s like their body is juggling hormones and immunity.
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.