The Claim
In male mice, increased body weight during young adulthood (42–365 days) is correlated with a reduction in lifespan, with an estimated loss of up to 14.3 days per additional gram of body weight, and this association is significantly stronger in males compared to females, indicating sex-specific differences in the genetic regulation of the relationship between body weight and lifespan.
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 male mice, being heavier as a young adult is linked to a shorter life — each extra gram might take away up to 14 days. This effect is much stronger in males than in females, suggesting their genes handle weight and aging differently.
See the scientific wording
In male mice, higher body weight during young adulthood (42–365 days) is associated with reduced lifespan, with a loss of up to 14.3 days per gram of body weight, and this trade-off is significantly stronger in males than in females, suggesting sex-specific genetic regulation of the body weight–lifespan relationship.
What the research says
1 studyStudy: Genetic Modulation of Lifespan: Dynamic Effects, Sex Differences, and Body Weight Trade-offs
The study found that male mice that weigh more when they're young tend to live shorter lives, and this link is stronger in males than females, which matches the claim.
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.