Personal Connections to Smell

• Various individuals share smell memories and associations
  • Rain smell connecting to Venezuela homeland
  • Chlorine evoking summer pool time with children
  • Crayons triggering kindergarten memories
  • Christmas scents (apple crisp, cinnamon, pine trees) linked to birthday
  • Thanksgiving smell connecting to mother's memory
• Smell transports people to different dimensions and emotional states

Scientific Foundation of Smell

• Chemosensory scientist and nurse researcher studies disease effects on taste/smell
• Smell is only sense directly linked to brain's limbic system
  • Controls memory and emotions
  • Can make people happy, sad, calm
  • Regulates emotions and feelings
• Most people would give up smell if forced to choose among five senses
• Smell serves critical safety functions
  • Detects spoiled food
  • Identifies gas leaks
  • Signals infection, decay, other health issues

Clinical Experience and Smell Detection

• Nursing background revealed smell as primal sense for health assessment
  • Smelling infection, decay, bodily functions
  • Ignoring smell creates health risks
• Mother-in-law case study
  • Noticed extremely salty food from previously excellent chef
  • Tested smell - found hyposmia (decreased sense of smell)
  • Led to doctor visit and frontotemporal lobe dementia diagnosis
  • Clinicians never tested smell despite symptoms

Disease-Related Smell Loss

• Smell decreases naturally with aging
• Neurodegenerative diseases cause smell decline
  • Alzheimer's, Parkinson's disease, frontotemporal lobe dementia
  • Smell loss occurs 10+ years before other symptoms appear
• COVID-19 impact
  • Millions lost taste/smell during pandemic
  • Viral diseases typically cause temporary smell loss
  • COVID created sustained loss at unprecedented magnitude
  • People regain smell to varying degrees
  • Concern about increased neurodegenerative disease risk for COVID smell-loss patients

Current Healthcare Gaps

• Lack of clinical attention to smell assessment
• No standardized screening/diagnostic tools in medical practice
• No established baselines for individual smell function
• Research tools exist but not standardized across medical offices
• No guidelines for doctors to assess taste/smell

Future Vision for Smell Testing

• Annual smell measurements for all individuals
• Smell testing from childhood through adulthood
• Integration into routine physical exams
• Early disease detection through smell assessment
• Comparison to vision testing standards
• Potential for smell tests to provide early disease information and overall well-being insights