Stress and Lead Exposure Increase Blood Pressure
Author Information
Author(s): Brown Valerie J.
Primary Institution: National Heart, Lung, and Blood Institute
Hypothesis
Does stress amplify the effects of lead exposure on blood pressure in humans?
Conclusion
The study found that stress significantly increases the risk of developing hypertension in individuals exposed to lead.
Supporting Evidence
- Stress amplifies the effects of lead exposure on blood pressure.
- Participants reporting high stress had more than 2.5 times the risk of developing hypertension for each standard deviation increase in bone lead.
- The study used data from a longitudinal study of men in the greater Boston area.
Takeaway
If you're stressed and have been around lead, your blood pressure might go up a lot more than if you weren't stressed.
Methodology
The study analyzed data from the Normative Aging Study, comparing blood pressure with self-reported stress levels and bone lead tests.
Potential Biases
The study may not account for the effects of lead exposure and stress in lower socioeconomic populations.
Limitations
The study participants were all male, 97% white, and had higher than median incomes, which may limit the generalizability of the findings.
Participant Demographics
Participants averaged 66.9 years of age, were predominantly male, and mostly white.
Statistical Information
Statistical Significance
p<0.05
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