Poor health habits, for example, too much sun exposure or smoking, are associated with Greater and brain shrinkage in brain matter volume during middle adulthood.
Numerous well-known poisons and carcinogens are among the thousands of chemical components that make up tobacco smoke, which is made up of gases and an aerosol. While some of these components are part of the particles, others are mostly in the gas phase.
For instance, mainstream smoke contains particles that are attached to nicotine.The respiratory tract includes a sophisticated collection of processes for managing the particles and gases in inhaled air, protecting the lungs from damage.
These defences include physical barriers, reflexes, the cough response, the mucociliary apparatus, alveolar macrophages, and lung immunological responses. The epithelial lining's sorptive capacity is also included.
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