- Study examined impact of secondhand smoke exposure and vitamin D deficiency on cognitive impairment in older adults.
 - Vitamin D deficiency independently associated with increased risk of low scores on cognitive tests.
 - Synergistic effects of secondhand smoke exposure and vitamin D deficiency observed.
 - More pronounced effect in participants with overweight and obesity.
 - Lead author emphasized the importance of modifying living habits contributing to cognitive impairment.
 - Further research into mechanisms underlying associations is recommended.
 
Secondhand Smoke and Low Vitamin D Linked to Cognitive Decline
                                            Conexiant
                                        February 17, 2025