The chemical constituents of vaping are loaded with carcinogens and other harmful substances that can cross the blood-brain barrier. Using other delivery methods like tinctures, patches, or edibles can help offset the risks associated with smoking and vaping.
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The speaker suggests monitoring the slow rollout of states for a few months before making any decisions. They caution against blindly jumping in, despite the "free" offer.
The Freakonomics guys brought attention to the Seth Roberts diet, which claims to reduce hunger by ingesting flavorless calories, without testing its effectiveness. Although it was never tested, the diet became popular due to the language of science used in promotion.
The use of nicotine gum is a helpful tool to aid focus and improve memory, but other nootropics like New Pept, PRL853, and Fennel-Paresitam were just okay. There is a question if stimulants are also considered nootropics.