• Scientists have reported that healthy people emit exponentially more aerosol particles from their lungs as they age, both at rest and during exercise.
  • The team found that older people, aged 60-70 years, emitted twice as many aerosol particles and five-times as much dry volume i.e., the volume of dried aerosol particles, as those aged 20-39, both at rest and during exercise.
  • In the early days of the COVID-19 pandemic, there was considerable debate over whether aerosols helped the virus move through the air. The new findings suggest disease-transmission models may have to account differently for younger and older people.